Associate new repository URL with one used to originally load in the repo

[cdolfi]

As repos move there should be a way for augur to store the information of the new repository URL (if it does not already). This additional info should be integrated into 8Knot so if someone types in the new URL its associated with the old one.

For example:

I am being asked to analyze https://github.com/redhat-developer/devspaces which is in our augur instance as https://github.com/redhat-developer/codeready-workspaces . There is no direct way (to my knowledge) to discover the old url it is under in augur from the new one

[cdolfi]

@EngCaioFonseca tagging for visibility, this will be important for the search bar

[sgoggins]

@ABrain7710 / @Ulincsys : I am not able to easily replicate this exactly. I thought Augur updated the URLs when they changed.