enabling a custom token without adding token info

[wolverineks]

it looks like enabling a token assumes that the token info is already included or has already been added
this could lead to a state where a currency code is "enabled" but not really enabled

or am i missing something?

[wolverineks]

i imagine it shouldn't save custom token currency codes to disk,
and it shouldnt enable a currency code if there isnt a corresponding EdgeMetaToken in the currency info or provided by wallet.addCustomToken()

[wolverineks]

If tokens are supposed to be synced, then they shouldn't be saved in walletLocalData