`open` ACTION

[DenisCarriere]

[[eosio::action]]
void open(const name owner);

• Open balances table row for owner account
  • ~Opens RAM table for accounts token symbols~
  • ~0,RAM~
  • ~0,DROP~
• Transaction silent pass if balances already opened (helps UI's not revert transaction because of open action)
• Action must be auth'ed by owner to prove ownership before accepting deposits

  FYI: eosio.token::open allows to open a balance for another account, as long as ram_payer is auth

[DenisCarriere]

implemented via https://github.com/drops-system/drops/pull/14