Transform MolHomeServices triggered events into Announcements

[labordep]

Transform MolHomeServices triggered events into Announcements, because use symbol is not a good level of API.

Concerned methods :

Concerned events :

component triggerEvent: #activateComponent with: component.
component triggerEvent: #instantiateComponent with: component.
component triggerEvent: #passivateComponent with: component.
removedComponent triggerEvent: #removeComponent with: removedComponent.