[GS] Update submodule
Add new API call: blockchain_unclaimed_genesis

This API call will calculate and return the total number of XTS which
are in genesis balances that have never been touched.
Merge branch 'develop' of github.com:BitShares/bitshares_toolkit into develop
[BW]: [NIP] Slight bts::client::client class interface enhancement needed by further changes done in BitsharesXT.
Merge branch 'develop' of https://github.com/BitShares/bitshares_toolkit into develop
[BW]: [Ign] Upped version of qt_wallet.
Fix incorrect sending amount in transaction history
Update submodule