raster and terra are slower on better PC

[kadyb]

Benchmarks were run on two different hardware configurations. Almost all packages noted better times on the newer PC (test 2) except selected functions from raster and terra.

# test 1 hardware
CPU: Intel Core i5 3210M 2.50 GHz
RAM: 8 GB
OS: Windows 8.1

# test 2 hardware
CPU: Intel Xeon CPU E5-2620 v2 @ 2.10GHz
RAM: 64 GB
OS: Pop!_OS 20.04 LTS

Timings are given as medians of 10 iterations.

task	package	test 1	test 2
extract-points	raster	22.3	24.5
crop	terra	6.3	8.3
extract-points	terra	6.7	7.2
write	terra	38.9	42.0
ndvi	raster-fun	8.1	9.0
ndvi	raster-overlay	5.7	6.5
ndvi	terra-fun	8.8	11.6
ndvi	terra-lapp	7.3	8.9

(I rerun below tests so the results are not accidental)

For reference:

1. timings.csv - test 1 (15.02)
2. timings.csv - test 2 (16.02)