ibc transfers possible in withdraw method

[harsenyan3]

Add info on the possibility of ibc (inter-blockchain communication) transfers in the withdraw RPC method thanks to refactoring for tendermint. Check out PR#2088 for further info.

[shamardy]

This GLEECBTC/komodo-defi-framework#2088 also adds pubkey only activation for Tendermint and adds send_asked_data RPC and DATA_NEEDED Event. These all can be used for external wallets such as Keplr, also related to keplr GLEECBTC/komodo-defi-framework#2148