Should be able to issue PRs on repos

[rtholmes]

It should be able to PR existing repos. While the repoPatchTool used to exist, it has been lost to the sands of time. A ruby workaround exists, but this should just be in Classy as it is so analogous to provisioning.

Ultimately, it will probably look like this:

• Configure a deliverable for provisioning via PR
• A PR takes a prior project to be patched, and an 'patcher' project that should be a specific branch in a specific repo
• The patchee should be checked out, a branch made, and all files from the patcher project should be copied over the patchee files.
• A PR should be made with the resulting structure.
• This should happen for each repo.

The following endpoints exist, but they aren't currently functional:

server.get("/portal/admin/listPatches", AdminRoutes.isAdmin, AdminRoutes.listPatches);
server.post("/portal/admin/patchRepo/:repo/:patch/:root", AdminRoutes.isAdmin, AdminRoutes.patchRepo);
server.get("/portal/admin/patchSource", AdminRoutes.isAdmin, AdminRoutes.patchSource);
server.post("/portal/admin/updatePatches", AdminRoutes.isAdmin, AdminRoutes.updatePatches);

[rtholmes]

Closing. 210 and 310 are using "Autobot's Sister" now rather than something that needs to be built into classy.