Align on `Opcode`and `Bytecode` `__hash__` and `__eq__` logic

[fselmo]

Some optimizations involving caching calls that deal with Opcode and Bytecode revealed that, since adding metadata to these classes, we do not take these into account when generating a unique __hash__() for these classes, nor when comparing via __eq__(). Unfortunately, for the Opcode case, this is relied upon in the opcode_gas_map so we can't just account for these without refactoring how this map works.

For more context on how these issues bubbled up and a band-aid fix, without this larger refactor, see #2185. I think the actual fix is aligning these dunder methods to take metadata into account but more discussion is needed to align on the next steps here.