Merge branch 'feature/link-aggr-capab-junos-parser' into feature/link-aggr-capab
Getters implementation in LinkAggregationCapability.

They make use of LinkAggregationAPIAdapter to translate from model objects to defined API ones.
Merge pull request #891 from isartcanyameres/feature/link-aggr-capab-getters

Feature/link aggr capab getters