Auto-Upgrader - like Maven's "versions" plugin, but with extra run-a-build and do-a-commit steps

### Current Behavior:

Technology shows what upgrades could be made to deps.

### Proposed Behavior:

Technology attempts to upgrade on dependency at a time, in cloud/CI time, then run a build, then propose a pull request if the the build is successful.

To break that down:

1. Dependency-track would attempt to upgrade in a cloned dir like Maven's versions plugin: https://www.mojohaus.org/versions-maven-plugin

2. Dependency-track would attempt to run a build and if successful to do a commit then make a pull-request