HV-704 Making EL a provided dependency and implementing the resolving of the formatter method in the RootResolver
HV-704 Adding requirement for EL dependencies to README
HV-704 Adding test that non formatter functions still can be used
HV-704 Adjusting scope of EL dependencies. In particular in engine the EL impl should be a runtime dependency.
HV-704 Adding check for right method name foramtter#format