Max Flow Explorer Android Preview

First Android preview of Max Flow Explorer.

This release includes the offline mobile version of the app, packaged as an
Android WebView APK. You can build flow networks, drag nodes, compute maximum
flow, inspect augmenting paths, visualize the induced minimum cut, and verify
the max flow = min cut certificate directly on your phone.

Highlights:

• offline Android app
• touch-friendly graph interaction
• draggable nodes
• augmenting path visualization
• final flow decomposition
• induced minimum cut certificate

APK included in this release for testing.