Instruction description enhancement

[AFOliveira]

Is your feature request related to a problem? Please describe.
On Instructions yaml files: Excluded by field can only take one extensions, but an instruction could be excluded by more that one extension.

Describe the solution you'd like
Set it has the definedBy: field. Let it have anyOf, allOf.

Additional context
Zext.h example:
excludedBy: [Zk, Zkn, Zks, Zbkb]

[dhower-qc]

I'll get this fixed so it works just like definedBy

[dhower-qc]

Actually, I just looked and I think both the schema and Ruby object model for instruction.excludedBy should accept the same as definedBy. Are you up to date with the main branch?

[AFOliveira]

I think it broke my regression test, but it could have been my mistake. I'll try again and get back here.

[AFOliveira]

@dhower-qc It was my mistake. Thank you for the clarification. Already fixed zext.h in #188