feat: initialize OpenGL

.gitignore

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+*.o
+*.obj
+*.so
+*.dylib
+*.dll
+*.a
+*.lib
+*.exe
+*.out
+*.app
+*.ilk
+*.pdb
+*.idb
+*.pch
+*.sbr
+build/
+Build/
+bin/
+Debug/
+Release/
+x64/
+x86/
+out/
+.vs/
+.vscode/
+.idea/
+*.user
+*.suo
+*.sln.docstates
+CMakeCache.txt
+CMakeFiles/
+cmake_install.cmake
+Makefile
+CMakeOutput.log
+CMakeError.log
+*.log
+*.tmp
+*.swp
+*.swo
+*~
+.DS_Store