feat: table format as MP_MAP

Summary

• feat: table format as MP_MAP

Initial push to bring our custom Encode implementation into picodata. We decided to try it on table format field in table definition.

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• Blocked by
  • sbroad#558 (closed) - TableDef will contain MP_MAP fields and therefore we need to be able to work with them in our SQL
  • !887 (merged)
  • tarantool-module!480 (merged)
• Close #373 (closed)
• Target branch: master
• Changes should be cherry-picked to 24.2: no
• Docs follow-up: not necessary