SYSMOAS11 — should have defaults consistent in the parameters

the standard for functions should be, e.g.

getExternalRelationships(projectId:UUID, branchId:UID[0..1],commitId:UID[0..1]):ExternalRelationship[0..*]

which means if a branchId is missing use the commitId, if commitId is missing then use the head of the branchId if it is there,
otherwise, use the default Branch and its head of the project given
many of the API operations need to be specified this way to be consistent

I have a reworked model at https://material.elparazim.com/SysMLv2API/