glapi: remap_helper.py: use argparse instead of optparse
glapi: remap_helper.py: use argparse instead of optparse

Make the code simpler, cleaner, and easier to work with.

Signed-off-by: Dylan Baker <c26a678a04c601e0311b0d6006e67eee6ed19a8e@intel.com>
Acked-by: Matt Turner <789b315743a28dd066a4ba1459c35951c291d8a6@gmail.com>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler