[NOX-76] add GLContext unit tests #84

Job	Run time
clang-format	5s
coverage Windows	1m 55s
Windows VS2022 Static Release	1m 44s
coverage Linux	1m 8s
clang-tidy Windows	2m 10s
Windows VS2022 Static Debug	1m 39s
clang-tidy Linux	36s
Windows VS2022 Shared Release	1m 38s
Windows VS2022 Shared Debug	1m 2s
Windows Clang Static Release	2m 48s
Windows Clang Static Debug	1m 50s
Windows Clang Shared Release	3m 54s
Windows Clang Shared Debug	3m 47s
Windows GCC Static Release	49s
Windows GCC Static Debug	1m 1s
Windows GCC Shared Release	1m 41s
Windows GCC Shared Debug	1m 9s
Linux Clang Static Release	32s
Linux Clang Static Debug	34s
Linux Clang Shared Release	21s
Linux Clang Shared Debug	23s
Linux GCC Static Release	23s
Linux GCC Static Debug	23s
Linux GCC Shared Release	24s
Linux GCC Shared Debug	17s
	32m 13s

Provide feedback