Add support for using a local archive of factory and OTA images

[flawedworld]

Many individuals working full time on device development often maintain a local archive of releases, and it would be useful if there was an easier usage of such a scenario.

[kdrag0n]

Isn't that the same as this existing feature? https://github.com/kdrag0n/adevtool/blob/main/docs/system-source.md

[flawedworld]

Ah I see! My mistake, apologies.