WIP: Use ADB to kill processes

[brian-livefront]

This PR is a proof-of-concept for using ADB to kill processes. Note that in order for this to work, a separate app needs to be installed to connect to ADB and you need to connect to ADB on the device using Wireless Debugging. For an example see, this apphttps://play.google.com/store/apps/details?id=com.github.standardadb.