-- v2: opengl32: Move wglGetProcAddress extension filtering to unix_wgl.c. opengl32: Move function / extension registry mapping to unix_thunks.c. opengl32: Move glGetIntegerv extension filtering to unix_wgl.c. opengl32: Move glGetString extension filtering to unix_wgl.c. opengl32: Move glGetStringi extension filtering to unix_wgl.c. opengl32: Move extension filtering helpers to unix_wgl.c. opengl32: Introduce new disabled_extensions_index helper.