* Introduce Additional Data to Store Blob and move obsolete props to migration
* Fixes and tests
* Small adjustements to prevent tracking too many objects
Co-authored-by: nicolas.dorier <nicolas.dorier@gmail.com>
replaces #1591 and #1592 , closes#1571 Replaces the Currencies.txt to a json format which includes the networks too ( there is also a test to check now) Also makes CurrencyPair not depend on network and instead use CurrencyNameTable