Added "other partners" dynamic listing and editing.
Fixed tooptips to match their intended actions (copy paste no updated).
Removed implemented TODO.
Refactored logic to defaultModelUpdate(), defaultModelDisplayUpdate()
functions to avoid code duplication. Modified
defaultModelDisplayUpdate() logic to display GROUP only information to
adapt to different type of actor roles.
Implemented new `addOtherPartner` function.
Created new hb-actor-line-converter directive to implement `other
partner` support which are stored into FRACTION.L instead of GeoXml.xsd
PERSONNEType such as ELFIN.PARTENAIRE.{GERANT, FOURNISSEUR,
PROPRIETAIRE}