Add get_normals() public function

[dgaylo]

Closes #27

Changes

• Rename reconstruction to plic
• Add plic.get_normals() to get sign of normals
• Refactor of testing of normals calculation
• Documentation updates

[github-actions]

Benchmark Results

-------------------------------------------------------------------------------- benchmark 'test_bench_Chan': 2 tests -------------------------------------------------------------------------------
Name (time in us)               Min                 Max                Mean             StdDev              Median                IQR            Outliers  OPS (Kops/s)            Rounds  Iterations
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
test_bench_Chan (head)     570.0880 (1.0)      992.6720 (1.03)     596.9985 (1.0)      24.4466 (1.05)     594.7450 (1.0)      17.1843 (1.0)        117;86        1.6750 (1.0)        1761           1
test_bench_Chan (base)     573.7980 (1.01)     959.9370 (1.0)      603.4186 (1.01)     23.2095 (1.0)      601.2890 (1.01)     18.7297 (1.09)       207;80        1.6572 (0.99)       1755           1
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

------------------------------------------------------------------------- benchmark 'test_bench_WY': 2 tests ------------------------------------------------------------------------
Name (time in ms)           Min               Max              Mean            StdDev            Median               IQR            Outliers       OPS            Rounds  Iterations
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
test_bench_WY (base)     3.3938 (1.0)      4.6874 (1.21)     3.4564 (1.0)      0.0892 (1.47)     3.4399 (1.0)      0.0450 (1.08)        16;19  289.3145 (1.0)         298           1
test_bench_WY (head)     3.4005 (1.00)     3.8890 (1.0)      3.4621 (1.00)     0.0609 (1.0)      3.4483 (1.00)     0.0419 (1.0)         25;18  288.8419 (1.00)        294           1
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

------------------------------------------------------------------------- benchmark 'test_bench_base': 2 tests ------------------------------------------------------------------------
Name (time in ms)             Min               Max              Mean            StdDev            Median               IQR            Outliers       OPS            Rounds  Iterations
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
test_bench_base (head)     1.4228 (1.0)      2.3883 (1.06)     1.4728 (1.0)      0.1269 (1.0)      1.4455 (1.0)      0.0196 (1.0)         27;61  678.9813 (1.0)         703           1
test_bench_base (base)     1.4247 (1.00)     2.2622 (1.0)      1.5067 (1.02)     0.1668 (1.31)     1.4543 (1.01)     0.0259 (1.32)        56;84  663.7129 (0.98)        700           1
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

------------------------------------------------------------------------------- benchmark 'test_bench_no_norm': 2 tests --------------------------------------------------------------------------------
Name (time in us)                  Min                 Max                Mean             StdDev              Median                IQR            Outliers  OPS (Kops/s)            Rounds  Iterations
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
test_bench_no_norm (base)     335.6450 (1.0)      700.0730 (1.08)     359.0165 (1.00)     24.3477 (1.0)      354.1290 (1.02)     18.7808 (1.05)      198;114        2.7854 (1.00)       2965           1
test_bench_no_norm (head)     335.8800 (1.00)     648.3070 (1.0)      358.8274 (1.0)      37.3770 (1.54)     348.4035 (1.0)      17.8785 (1.0)       138;166        2.7869 (1.0)        2976           1
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Legend:
  Outliers: 1 Standard Deviation from Mean; 1.5 IQR (InterQuartile Range) from 1st Quartile and 3rd Quartile.
  OPS: Operations Per Second, computed as 1 / Mean

• base: cef22aa
• head: e56aec8