Related to https://github.com/monero-project/research-lab/issues/78
Added a relay rule that enforces the `unlock_time` field is equal to 0 for non-coinbase transactions.
UIs changed:
* Removed `locked_transfer` and `locked_sweep_all` commands from `monero-wallet-cli`
APIs changed:
* Removed `unlock_time` parameters from `wallet2` transfer methods
* Wallet RPC transfer endpoints send error codes when requested unlock time is not 0
* Removed `unlock_time` parameters from `construct_tx*` cryptonote core functions
@tobtoht: undo rebase changes tx.dsts -> tx_dsts
- tests fixes for HF10, builder change, rct_config; fix_chain
- get_tx_key test
- proper testing after live refresh added
- live refresh synthetic test
- log available funds for easier test construction
- wallet::API tests with mocked daemon