[ORGANIZE] Move wallet related things to src/wallet/
[ORGANIZE] Move wallet related things to src/wallet/

[ORGANIZE] Move wallet related files to src/wallet/

unobtanium-official/Unobtanium,unobtanium-official/Unobtanium,unobtanium-official/Unobtanium,unobtanium-official/Unobtanium,unobtanium-official/Unobtanium,unobtanium-official/Unobtanium