TOSA 0.50.0 release tag

- Add a new definition for TOSA levels. Levels define operator parameter
  ranges that an implementation shall support. This is distinct from a profile
  that defines the operations and data-types supported
- Tensor coordinates are clarified to be 32-bit integer values
- Operator clarifications: SLICE, RESIZE, RESCALE
- Add the ability to CAST between floating-point types

See the git log for all changes.

1. e4d6a1b Add Levels defintion by Dominic Symes · 1 year, 7 months ago
2. 58098a7 Machine parsable specification by Eric Kunze · 1 year, 10 months ago
3. 42229d0 Initial work on floating-point type definition by Eric Kunze · 2 years, 2 months ago
4. 44a1347 Add FFT operators to MI/MT profiles by Eric Kunze · 2 years, 10 months ago
5. a1ba656 Update makefile to fail build on spelling failure by Eric Kunze · 2 years, 2 months ago
6. a3eded0 Add rudimentary spell check for specification by Eric Kunze · 2 years, 6 months ago