Be able to filter between the different EOSIO chains

[maxocoin]

With all the new EOSIO side chains been created lately, the account selector gets very crowded very quickly.

I think in the "Blockchain" drop down, it would be a good idea to add, on top of EOSIO, Ethereum, TRON and Bitcoin an additional entry for each EOSIO chain what we have accounts with (EOS, Telos, meetone, BOS...)