Porting Guide v4 -> v5

Encoder

ZydisRegisterGetLargestEnclosing will now return the given register itself for registers that don't have an enclosing register. Previously it would return ZYDIS_REGISTER_NONE in these cases.
ZydisEncoderDecodedInstructionToEncoderRequest now expects exactly instruction->operand_count_visible to be passed, not operand_count_visible at maximum. Passing a lower value was previously allowed but didn't really make much sense at all.