Tosa specification handling (#6688)

Add TOSA specification details to the Arm Backend.

* Mandate the need for a TOSA version in the compile spec list passed
to the Arm backend and propagate the information to node visitors
for serialization handling.
* Add TOSA version string to all TOSA tests
* Adds handling of TOSA 0.80 BI and MI profile as separate serialization
handlers for ADD as an example.

Signed-off-by: Per Åstrand <per.astrand@arm.com>