Add check within HK_ValidateHkCopyTable to verify max table/combined packet size

[dmknutsen]

Checklist (Please check before submitting)

• [ x] I reviewed the Contributing Guide.
• [ x] I reviewed the README file to see if the feature is in the major future work.
• [ x] I performed a cursory search to see if the feature request is relevant, not redundant, nor in conflict with other tickets.

Is your feature request related to a problem? Please describe.
It is possible to for user's to build HK copy tables/combined packets that violate project specific requirements in regards to max packet size.

Describe the solution you'd like
Add logic inside of HK_ValidateHkCopyTable to determine the size of the resulting combined packet and ensure that it is less than the platform/project defined max value.

Requester Info
Dan Knutsen
NASA Goddard