Add pretty printer for acquisition results

[minecraft2048]

This will show a table of PRNs with CN0, carrier doppler and code phases instead of raw Julia struct dump

Before:

julia> acquire(GPSL1(), mmap_buf_raw[1:4096], sample_rate*Hz, 1:32, max_doppler=40000Hz)
32-element Vector{Acquisition.AcquisitionResults{GPSL1{Matrix{Int16}}, Float32}}:
GPSL1{Matrix{Int16}}()GPSL1{Matrix{Int16}}()GPSL1{Matrix{Int16}}()GPSL1{Matrix{Int16}}()GPSL1{Matrix{Int16}}()GPSL1{Matrix{Int16}}()GPSL1{Matrix{Int16}}()GPSL1{Matrix{Int16}}()GPSL1{Matrix{Int16}}()GPSL1{Matrix{Int16}}()GPSL1{Matrix{Int16}}()GPSL1{Matrix{Int16}}()GPSL1{Matrix{Int16}}()GPSL1{Matrix{Int16}}()GPSL1{Matrix{Int16}}()GPSL1{Matrix{Int16}}()GPSL1{Matrix{Int16}}()GPSL1{Matrix{Int16}}()GPSL1{Matrix{Int16}}()GPSL1{Matrix{Int16}}()GPSL1{Matrix{Int16}}()GPSL1{Matrix{Int16}}()GPSL1{Matrix{Int16}}()GPSL1{Matrix{Int16}}()GPSL1{Matrix{Int16}}()GPSL1{Matrix{Int16}}()GPSL1{Matrix{Int16}}()GPSL1{Matrix{Int16}}()GPSL1{Matrix{Int16}}()GPSL1{Matrix{Int16}}()GPSL1{Matrix{Int16}}()GPSL1{Matrix{Int16}}() GPSL1{Matrix{Int16}}()GPSL1{Matrix{Int16}}()Acquisition.AcquisitionResults{GPSL1{Matrix{Int16}}, Float32}(, 1, 4.096e6 Hz, 6333.3333333333285 Hz, 975.796142578125, 46.81863125100185, 11038.363f0, Float32[18572.95 15015.173 … 6065.8623 2548.818; 19040.5 4524.363 … 7934.0605 4817.4497; … ; 8162.4614 14175.911 … 8782.8 5482.5293; 12551.445 17593.104 … 4964.5303 4034.6843], -40000.0:333.3333333333333:40000.0)
 GPSL1{Matrix{Int16}}()GPSL1{Matrix{Int16}}()Acquisition.AcquisitionResults{GPSL1{Matrix{Int16}}, Float32}(, 2, 4.096e6 Hz, 12666.666666666664 Hz, 809.208984375, 41.87030576943526, 11038.363f0, Float32[2749.5 3845.736 … 9135.486 17222.809; 1170.8043 922.0265 … 16994.95 40483.47; … ; 24079.648 4738.8716 … 1592.0038 495.50058; 8905.348 6122.51 … 2255.3472 2553.3147], -40000.0:333.3333333333333:40000.0)
 GPSL1{Matrix{Int16}}()GPSL1{Matrix{Int16}}()Acquisition.AcquisitionResults{GPSL1{Matrix{Int16}}, Float32}(, 3, 4.096e6 Hz, 10333.333333333328 Hz, 215.28955078125, 45.01535691963892, 11038.363f0, Float32[19694.23 47327.785 … 12565.127 14924.086; 29930.008 67733.555 … 8196.492 9384.577; … ; 2724.7097 4526.7773 … 3299.5862 1436.8499; 5161.059 7676.764 … 10543.941 11131.6875], -40000.0:333.3333333333333:40000.0)
...

After:

Text version:

julia> acquire(GPSL1(), mmap_buf_raw[1:4096], sample_rate*Hz, 1:32, max_doppler=40000Hz)
┌─────┬─────────┬──────────────────────┬────────────────────┐
│ PRN │     CN0 │ Carrier doppler (Hz) │ Code phase (chips) │
├─────┼─────────┼──────────────────────┼────────────────────┤
│   1 │ 46.8186 │           6333.33 Hz │            975.796 │
│   2 │ 41.8703 │           12666.7 Hz │            809.209 │
│   3 │ 45.0154 │           10333.3 Hz │             215.29 │
│   4 │ 47.9493 │           16333.3 Hz │            81.1707 │
│   5 │ 40.7673 │          -5666.67 Hz │            40.2107 │
│   6 │ 40.7517 │          -17333.3 Hz │            742.774 │
│   7 │  41.894 │          -10666.7 Hz │            191.063 │
│   8 │ 40.8489 │          -9666.67 Hz │            947.324 │
│   9 │ 41.0482 │           19333.3 Hz │            401.358 │
│  10 │ 41.1133 │          -3333.33 Hz │            230.525 │
│  11 │  46.765 │           21333.3 Hz │            222.033 │
│  12 │ 41.3941 │          -21000.0 Hz │            332.925 │
│  13 │ 40.9514 │          -28333.3 Hz │             982.04 │
│  14 │ 43.3714 │          -25333.3 Hz │            566.696 │
│  15 │ 41.0788 │          -30666.7 Hz │            335.422 │
│  16 │  41.468 │           35666.7 Hz │            44.2068 │
│  17 │ 41.9595 │           7333.33 Hz │            294.962 │
│  18 │ 40.6438 │          -30666.7 Hz │             838.68 │
│  19 │ 40.6003 │          -38666.7 Hz │            493.268 │
│  20 │ 41.0764 │          -4666.67 Hz │            2.49756 │
│  21 │ 41.0419 │           21333.3 Hz │            585.428 │
│  22 │ 40.0897 │          -666.667 Hz │            615.648 │
│  23 │ 40.8109 │           15000.0 Hz │            943.328 │
│  24 │ 41.0855 │           40000.0 Hz │            16.4839 │
│  25 │ 41.6787 │           26666.7 Hz │            892.378 │
│  26 │ 41.5415 │           17000.0 Hz │            723.293 │
│  27 │ 41.3723 │           31000.0 Hz │            79.6721 │
│  28 │ 42.0714 │           37000.0 Hz │            638.376 │
│  29 │ 40.7247 │           20333.3 Hz │            268.488 │
│  30 │ 41.2057 │          -33333.3 Hz │            974.298 │
│  31 │ 46.9644 │           11333.3 Hz │             470.54 │
│  32 │ 44.2343 │          -1666.67 Hz │            513.998 │
└─────┴─────────┴──────────────────────┴────────────────────┘

[zsoerenm]

Very cool!
Just some small comments.

I wonder if we could add a Unicode heatmap at some time:
https://github.com/JuliaPlots/UnicodePlots.jl#user-content-heatmap-plot
But that's probably overkill and definitely not part of this PR.

[minecraft2048]

I think there's a regression with julia nightly:

WARNING: llvmcall with integer pointers is deprecated.
Use actual pointers instead, replacing i32 or i64 with i8* or ptr
in downconvert!(Array{Base.Complex{T}, 1}, AbstractArray{Base.Complex{TS}, 1}, Any, Any) where {T, TS} at /home/runner/work/Acquisition.jl/Acquisition.jl/src/downconvert.jl
Test Summary: | Pass  Total  Time
Downconvert   |    1      1  5.2s
Test Summary:                 | Pass  Total  Time
Estimate signal / noise power |   12     12  0.7s
Test Summary:             | Pass  Total  Time
Power over code for GPSL1 |    1      1  1.8s
Test Summary:                  | Pass  Total  Time
Power over code for GalileoE1B |    1      1  0.5s
Test Summary:                         | Pass  Total  Time
Power over code and Doppler for GPSL1 |    2      2  2.6s
Test Summary:                              | Pass  Total  Time
Power over code and Doppler for GalileoE1B |    2      2  0.7s
Acquire signal GPSL1 and signal type Float64: Test Failed at /home/runner/work/Acquisition.jl/Acquisition.jl/test/acquire.jl:47
  Expression: ≈(acq_res.CN0, CN0, atol = 6)
   Evaluated: 51.29622203029129 ≈ 45 (atol=6)

Something broke the CN0 estimation, and LoopVectorization looks a bit suspicious...

[zsoerenm]

Let's not care about nightly too much. I think this is fine for now.
Thank you!