[FIX][RPC] Harmonize use of token labels in RPC calls
In line with https://github.com/ioncoincore/ion/pull/187 increase consistency:
- Refer to ion with amount and to tokens with tokenAmount
- use tokenType to specify if an output is a value or an authority
- Use tokenAuthorities, not token_authorities
- use groupID instead of groupIdentifier
In line with Dash:
- use value and tokenValue for values with decimals
- use valueSat and tokenValueSat for their sat values (instead of using amount and tokenAmount for sat values)
More consistency:
- Add authorities to scantokens
- Use token { ticker, value, ..} instead of token { tokenTicker, tokenValue, ..}
- Use tokenAuthorities in favor of groupAuthorities
- Enable listtokentransactions to return output on all tokens instead of on specific tokens only
- Distinguish between token amounts and token authorities
listtokentransactions needed a token group ID string as input. This
commit makes that optional.
Now, when passing "*" or when omitting the token group ID string,
transactions from all token groups are returned.
