Add Wifi P2P about agregore-mobile

[RangerMauve]

Initial integration is done! We no have a button to auto-connect devices over wifi (requires Android 10)

[RangerMauve]

Useful resources:

• https://groups.google.com/g/wi-fi-direct
• https://stackoverflow.com/questions/40679154/android-wifip2p-why-is-group-info-null-after-connecting-to-group-owner
• https://github.com/Crash-Test-Buddies/WiFi-Buddy/blob/ee554a5f3ec9a0fe315b80b475c880043e901479/wifibuddy/src/main/java/edu/rit/se/wifibuddy/WifiDirectHandler.java

[RangerMauve]

The big eureka moment for getting stuff working was to use multicastSocket.setNetworkInterface(p2pInterface) in addition to specifying the interface for joinGroup.

Huge thanks to this Stack Overflow post: https://stackoverflow.com/a/62418119

[RangerMauve]

Initial demo app seeing if any of this is even possible is here: https://github.com/RangerMauve/WifiP2P-MDNS-Test/blob/default/app/src/main/java/com/example/wifip2p_mdns_test/WifiP2PActivity.java

[RangerMauve]

Got the initial WifiAutoConnect library published: https://github.com/RangerMauve/WifiAutoConnect-Android

Next steps will be to integrate it with Agregore Mobile with a button somewhere.

[RangerMauve]

Had to start using Trichrome in order to set the min SDK to 29 and work with the WifiP2p APIs.

As a result, the build will now output AAB files instead of APKs which we will need to turn into APKs with bundletool

I'll try adding a script to use the universal APK for ease of installation.