[$30] TC redirect

[jmgasper]

@veshu - In testing the Git access links, we ran into this one

• Test link: https://x.topcoder.com/api/v1/gitlab/groups/registration/f06bbb9e-21bb-4b23-bea4-3114b313f2d7-1531958646835

Current Result:

Expected Result:

The member should be redirected to the Gitlab / Github authorization link after successfully authenticating with TC. Their TC handle should be mapped properly in the DB.

It looks like the access control is a little too aggressive here.