Add tags & clientFlags on wallet creation

Summary: Backend now expects the tags attributes and clientFlags for handling ring fencing, adding this to sdk

Reviewers: luis, andrew, arik

Reviewed By: arik

Subscribers: ben

Differential Revision: https://phabricator.bitgo.com/D5582

fix bug in v2 pending approvals

preliminary tx recreation for v2 pending approvals

Reviewers: andrew, alex

Subscribers: ben

Differential Revision: https://phabricator.bitgo.com/D5487

up version

make transaction signing network-agnostic to preserve ubiquitous xpub…

…/xprv compatibility

Reviewers: ben, benchan

Reviewed By: benchan

Subscribers: omaid, andrew, ben

Differential Revision: https://phabricator.bitgo.com/D5428

Completely new ETH support in SDK v2

Summary:
Merge branch 'master' into eth_v2

Merge branch 'master' into eth_v2

added tentative support for Ethereum transaction signing

Merge branch 'master' into eth_v2

Merge branch 'master' into eth_v2

include ethereum utils in eth coin, and adapt string/int formats

add bignumber.js and string support

Merge branch 'master' into eth_v2

Merge branch 'master' into eth_v2

add tentative per-coin tests

Merge branch 'master' into eth_v2

# Conflicts:
#	src/v2/baseCoin.js
#	src/v2/wallet.js

merged LTC into ETH, and upped package version

Reviewers: alex, benchan, barath

Reviewed By: barath

Subscribers: ben

Differential Revision: https://phabricator.bitgo.com/D5406

add environment for rmg localhost

Summary: add environment for rmg localhost

Reviewers: andrew, arik

Reviewed By: arik

Subscribers: ben

Differential Revision: https://phabricator.bitgo.com/D5401

Enable list iteration in v2 transactions and transfers

Summary: Allow passing limit and prevId query params when listing transactions and transfers in v2

Reviewers: barath, omaid, arik

Reviewed By: arik

Subscribers: ben

Differential Revision: https://phabricator.bitgo.com/D5389

followup fix for auth v2

Reviewers: ben, benchan

Reviewed By: benchan

Subscribers: robert, ben

Differential Revision: https://phabricator.bitgo.com/D5388

critical fix for HMAC calculation for empty query strings

Reviewers: ben, benchan

Reviewed By: benchan

Subscribers: andrew, robert, alex, ben

Differential Revision: https://phabricator.bitgo.com/D5386