mapi: automake: add all python scripts to EXTRA_DIST
mapi: automake: add all python scripts to EXTRA_DIST

Otherwise it'll be missing in the tarball and make distcheck will fail.

Fixes: 05dd4a1104e ("glapi: Generate GL API marshalling code from the XML.")
Signed-off-by: Emil Velikov <f20878473f414da183da19ee25c8722cc1d711e4@collabora.com>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler