TOSA reference model v0.50.0 release tag

- Note that in this release, the specification has added the concept of
levels, but the reference model and conformance tests do not support
testing of levels
- Added FP16 and BF16 data type support, renamed FLOAT to FP32
- Started support for TOSA Main Inference conformance. Still a work in
progress
- Added the IModelRunner interface to allow running the reference model
via an API
- Added simple testing against Numpy
- Tests created/fixed: prelu, CAST, RESCALE, TILE, SIGMOID
- Upgraded Eigen submodule to version 3.4.0
- Misc. bugfixes

1. 8b39043 Reference model changes for fp16 support by James Ward · 1 year, 11 months ago
2. 8858862 Add profile to all created conformance tests. by Jeremy Johnson · 2 years ago
3. 0ecfa37 Add conformance generator scripts by Jeremy Johnson · 2 years ago
4. 6c6467f Enable pytest pre-commit by Jeremy Johnson · 2 years, 1 month ago
5. 6179c21 Add convert2conformance script by Jeremy Johnson · 2 years, 6 months ago
6. 5c1364c Add python pre-commit script checkers by Jeremy Johnson · 2 years, 6 months ago
7. be1a940 Update tosa_verif_run_ref by Jeremy Johnson · 2 years, 6 months ago
8. 2ec3494 Reorganize verif and create packages by Jeremy Johnson · 2 years, 7 months ago
9. e5e2676 Initial checkin of TOSA reference_model and tests by Eric Kunze · 3 years, 9 months ago