[CODE][JAVA] create android wallet for ZETTEL

[zettelkasten]

This bounty is for the creation of a working ZETTEL (and BURGER if possible) ANDROID wallet.

It has to be created using JAVA and come with building instructions so that others can build the wallet themselves.

The wallet must work as typical SPV (Simple Payment Verification) wallet, connect with full nodes, get block data, receive and send tx, etc. QR Code reading must also be implemented.

ATTENTION: we are not looking for "wallet builders" who copy paste another coin's android app, but for a serious JAVA developer with enough experience to maintain the wallet and add new ZETTEL-specific functionalities in the future.
So this bounty is just the beginning and future payments will be made if good work is provided.

Everyone is free to donate towards this bounty, the donation address is:

ZjavaLN851zRCYds4RPvvxaTeK3vNywx1z

(once you made a donation please tell me about it, so I can put your name in the list of donators)

1500 ZETTEL donated by sugarfly
250 ZETTEL donated by sugarfly
199.12916500 ZETTEL donated by zettelkasten
100 ZETTEL donated by Kayla
250 ZETTEL donated by mst100
200 ZETTEL donated by Kayla
500 ZETTEL donated by sugarfly
400 ZETTEL donated by Kayla
250 ZETTEL donated by ?
800 ZETTEL donated by Kayla
750 ZETTEL donated by ?

[zettelkasten]

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