This change is adding search capability to the following apis:
- child repositories
- child spaces
*NOTE* The search space is limited to direct child repos/spaces.
This change adds the following to the list branches api:
- 'query' parameter for querying branches using arbitrary substrings
- 'sort' parameter for sorting the branches (name and date supported)
- 'direction' parameter for specifing the direction of the sorted output
Preparing the support for harness specific API router + http handler, which allows us to have complete control over the rest api naming and functionality, without having to do complex path rewrites or request / reponse rewrites inline.
