once things have cooled off with debugging and implementation
processing.app.tools.android.* will move from its current location over to
android/tool in svn, alongside android/core.

this will also make the tool code self-contained, and remove all the
requirements inside Editor that are currently loading the android tools in
the source, rather than dynamically loading them using the "tools" API.

so the move has started, but the other half of this is to package it as a
regular processing 'tool', that exists in its own tool folder (in
processing/tools like processing/libraries) so that the code can be removed
from Editor that explicitly adds it.

we could temporarily move it to a Tool, or we can instead try to implement
the 'mode' support, which would probably be a better place for it to live
anyway.