Run kandy-lets-plot (JVM) on Android

Make a small app with kandy 0.5 on Android.
Make necessary enhancements if it proves impossible to do so

Start by creating the small Android app described in the issue with kandy 0.5 and check whether the JVM plotting library runs there. Identify any blockers encountered and determine which enhancements are necessary; the work is done when the app runs successfully on Android or the required changes are clearly defined.

Written by the indexing model from the issue text.