Charge creation and consultation based on Greg implementation
Fix migration file names
Remove unwanted models
Some refactor to keep clean 

Payment form interaction in FormApi. removed entities "messages" and
"usedMethods"
Home made WS code (save before trying a code generator
Added transaction fetching from WS getInfo

Renamed lib => libraries (seems to be the standard)
Imported VadsWsApi from contributions
quickly adapted api->getInfo for V4 WS
added transaction data in charges display (basic xml to json)