Revert Linux related changes from libocca#739.

[tests]Add union tests, statement & type loading

We add the necessary tests to ensure that (typedef) unions
can be parsed and loaded by OCCA.

Updates DPCPP polyfill and function calls.

Update version number.

v1.3 (libocca#590)

[Docs] Regenerate docs for v1.2.0 release (libocca#517)

[CUDA] Sets the CUDA context in more methods (libocca#400)

Update src/modes/hip/utils.cpp

Co-Authored-By: David Medina <[email protected]>

[Memory] Fixed passed dtypes that rely on refs

[StreamTag] Split streamTag as a modeStreamTag_t