[GL 4.1] Get Program Binary

http://www.opengl.org/registry/specs/ARB/get_program_binary.txt

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Add to enum AssemblyProgramParameterArb

PROGRAM_BINARY_RETRIEVABLE_HINT 0x8257

Add to enum ProgramParameter:

PROGRAM_BINARY_RETRIEVABLE_HINT 0x8257
PROGRAM_BINARY_LENGTH 0x8741

Add to enum GetPName:

NUM_PROGRAM_BINARY_FORMATS 0x87FE
PROGRAM_BINARY_FORMATS 0x87FF

Functions:

Also see #588: ARB_geometry_shader4

Old: void ProgramParameteri(uint program, enum pname, int value);
New: void ProgramParameteri(uint program, AssemblyProgramParameterArb pname, int value);

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Same issue as with querying binary formats #2055: [GL 4.1] ES2 Compatibility, we cannot predict them at compile time and thus no enum.

void ProgramBinary(uint program, enum binaryFormat, const void *binary, sizei length);
void GetProgramBinary(uint program, sizei bufSize, sizei *length, enum *binaryFormat, void *binary);