GL_ARB_get_program_binary
https://www.khronos.org/registry/OpenGL/extensions/ARB/ARB_get_program_binary.txt
GL_ARB_get_program_binary

	GL_PROGRAM_BINARY_RETRIEVABLE_HINT 0x8257
	GL_PROGRAM_BINARY_LENGTH 0x8741
	GL_NUM_PROGRAM_BINARY_FORMATS 0x87FE
	GL_PROGRAM_BINARY_FORMATS 0x87FF
	void glGetProgramBinary (GLuint program, GLsizei bufSize, GLsizei* length, GLenum *binaryFormat, void*binary)
	void glProgramBinary (GLuint program, GLenum binaryFormat, const void *binary, GLsizei length)
	void glProgramParameteri (GLuint program, GLenum pname, GLint value)