RDISCROWD-5742 sorting saved filters list

[n00rsy]

Issue number of the reported bug or feature request: RDISCROWD-5742

Describe your changes
All /taskbrowse_bookmarks API calls return an updated list of bookmarks.

• POST adds a bookmark to the list and the API response is an updated list
• DELETE removes a bookmark from the list and the API returns an updated list
• GET gets the current list of bookmarks

This PR adds 2 new optional url query parms, order_by and desc to specify the order of the resultant lists. Options are

• order_by = name, updated, or created
• desc = true/ false

The default sort is by alphabetically by bookmark name.

Example query:
http://localhost:5000/account/user/taskbrowse_bookmarks/testproject2?order_by=created&desc=true

Example response:
unchanged from before, but ordered by created date and descending

Testing performed
Tested locally.

Additional context
https://jira.prod.bloomberg.com/browse/RDISCROWD-5743

[coveralls]

Pull Request Test Coverage Report for Build 4938162375

• 24 of 24 (100.0%) changed or added relevant lines in 2 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.002%) to 94.124%

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Totals
Change from base Build 4812666301:	0.002%
Covered Lines:	16915
Relevant Lines:	17971

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💛 - Coveralls

[XiChenn]

lgtm, thank you.

[XiChenn]

LGTM. Can be merged upon unit tests passed.