ST6RI-933 SysML 2.1 Ballot #2 - Model Library

[seidewitz]

This PR updates several Systems and Domain Library models to correct minor errors, mostly in documentation comments, per the resolutions to the following issues approved on SysML 2.1 RTF Ballot 2.

• SYSML21-26 Actions::DecisionAction descriptions are different
• SYSML21-27 Actions::MergeAction descriptions are different
• SYSML21-29 Actions::AcceptMessageAction has different descriptions
• SYSML21-30 Actions::SendAction descriptions not the same
• SYSML21-362 calc defs '[' for vector and tensor quantity values missing nonunique
• SYSML21-370 Typo montonically in Time::Clock
• SYSML21-526 SysML.sysml doc wrong

The resolution to the following issue also approved on Ballot 2 was already proactively implemented in PR #660 (ST6RI-855).

• SYSML21-6 Remaining error in TradeStudies model

Models Changed

Systems Library

• Actions.sysml
• SysML.sysml

Quantities and Units Domain Library

• VectorCalculations.sysml
• TensorCalculations.sysml
• Time.sysml