[WIP] emit mainnet deposit/withdraw events

(cherry picked from commit f245e03)

implement missing Sign method

When the -e / --ext flag is specified the mempool_txs endpoint will be
queried instead of unconfirmed_txs, mempool_txs provides additional
metadata for each tx (currently just the height at which each tx was
added to the mempool). When --ext is specified the --limit flag can be
set to -1 to fetch all txs in the mempool.

Add debug dump-mempool command

make gateway emit more events

…teway-version

Revert "make gateway emit more events"

[WIP] make gateway emit events

fixing dposv3 error

* use prefixed signing method in oracle 
* Add WithdrawalSigType gateway config

* add new view only method for getting unclaimed tokens  + test

Added gamechain build metadata

fix hsm signatures

updating initial change log

* transitioning to dposv3 types

* first steps towards improved delegation storage

* removing unnecessary `SetDelegation` function

* adding support for delegationIndex in storage

* changing capitalization of feeChangeDelay to reflect its being a constant

* transitioning to delegation index storage

* modularizing delegationkey computation

* adjusting sort to handle new delegation index

* adding index parameter to GetDelegation

* reset makefile

* creating funcion to generate next delegation index

- improving ListDelegations impl
- simplifying Delegate given new multidelegation scheme

* adjustments to use new checkdelegation request / repsonse

* updating dpos redelegate & unbond funcs to support multidelegation

* updating tests to work with new multidelegation features

* removing old locktime-combining related tests

* improving ranges over delegations

* ensuring that redelegate uses proper delegation indices

* adding multidelegation tests

* resetting makefile

This setting specifies how many block confirmations the TG Oracle should
wait for before forwarding events from an Ethereum block.

* adding comment to GetNextDelegationIndex

* adding table-based lockup tests

* deleting delegations whose full amounts have been unbonded

* adding delegation deletion & DelegationsCount tests

The blacklist can be specified using the WithdrawerAddressBlacklist
setting in the Oracle config, which should contain a list of DAppChain
addresses the TG Oracle shouldn't sign withdrawals for.

- simplifying calculateTierLocktime arguments
  + resulted in test simplification as well

…tions

# Conflicts:
#	auth/eth.go

todo reenable reward claiming

…withdraw

…n into map-accounts-ledger

resetting tier postlockup & related changes

fix deposit event emission

The gateway account cmd now displays the ETH & LOOM balances for the
DAppChain account if an account mapping exists.

The gateway unclaimed-tokens` cmd displays the unclaimed tokens held
by the DAppChain Gateway.

Output from the commands is rather crude.