Create test profiles to target and exclude GLSL parser tests.

GLSLParserTests verify platform-specific shader compilation, but do
not perform any computation on the gpu.  Exporting
INTEL_DEVID_OVERRIDE allows code paths for a slower platform (eg,
Baytrail) to be tested on a faster system (eg, Haswell).

Baytrail test runtime for the quick profile is significantly improved
by moving parser tests to a faster machine.  The following profiles
are needed to target parser tests:

  - parser.py: includes only the quick.py tests that are parser
    tests.  Tests in this profile can detect platform-specific
    failures while running on arbitrary hardware.

  - exclude_parser.py: includes all of the quick.py except the parser
    tests.  Tests in this profile perform computation on the gpu, and
    must run on the appropriate hardware to detect failures.