Use HttpPath instead of HttpPut in some cases?

[alvachien]

Use HttpPath instead of HttpPut in some cases?
Such as Mark As Done in Event.

[alvachien]

HttpPatch applied to EventController for now:

1. Mark as complete only update the CompleteTimepoint;
2. Assign to me only update the Assignee

[alvachien]

HttpPatch applied to FinanceAccountController for now:

1. Status. When set to closed, delete unposted ADP document and unposted Loan documents;