OMCI-lib-go: Invalid attribute values for 'multicastoperationsprofileframe.go' ME definition

The MulticastOperationsProfile ME definition was hand created (due to parser not being able to parse/generate code) and contains several issues that need to be corrected.

• Table attributes need to be of Table attribute type.  This is significant for MIB uploads (they should not be included) and for Get, GetNext operations.
• Counter types used instead of integers (counters are not included in MIB uploads either)
• Default base64 octets string wrong length (maybe not an issue, but after changing types to Tables it could be)
• A few access not correct.  Some get/set code generation preprocessing checks would have issues with those
• A couple of optional flags not set.  Also could be caught by code-generation improperly for create requests.