Fix: ensure to preserve gl state of calling application #749

Job	Run time
Libs: shared, FS Lib: stl, Arch: Win32, Build OS: windows-2022	7m 19s
Libs: static, FS Lib: stl, Arch: Win32, Build OS: windows-2022	6m 17s
Libs: shared, FS Lib: boost, Arch: Win32, Build OS: windows-2025	25m 53s
Libs: shared, FS Lib: boost, Arch: X64, Build OS: windows-2025	26m 11s
Libs: shared, FS Lib: boost, Arch: X64, Build OS: windows-2022	25m 17s
Libs: static, FS Lib: boost, Arch: X64, Build OS: windows-2022	23m 29s
Libs: static, FS Lib: stl, Arch: X64, Build OS: windows-2022	5m 54s
Libs: static, FS Lib: boost, Arch: Win32, Build OS: windows-2022	23m 42s
Libs: shared, FS Lib: boost, Arch: Win32, Build OS: windows-2022	24m 28s
Libs: shared, FS Lib: stl, Arch: X64, Build OS: windows-2022	5m 59s
Libs: shared, FS Lib: stl, Arch: Win32, Build OS: windows-2025	6m 17s
Libs: shared, FS Lib: stl, Arch: X64, Build OS: windows-2025	7m 25s
Libs: static, FS Lib: boost, Arch: X64, Build OS: windows-2025	24m 49s
Libs: static, FS Lib: stl, Arch: X64, Build OS: windows-2025	5m 42s
Libs: static, FS Lib: boost, Arch: Win32, Build OS: windows-2025	24m 40s
Libs: static, FS Lib: stl, Arch: Win32, Build OS: windows-2025	6m 59s
	4h 10m 21s

Provide feedback