Add RequestedPart entity, edit of repair, creation of invoice
Comment of every files, bug correction and other stuff

Merge branch 'master' of https://github.com/d-mon-/brookesTeam5.git

Conflicts:
	Garage/src/com/brookes/garage/dao/jpa/JpaPartDao.java
	Garage/src/com/brookes/garage/frame/RepairFormFrame.java
Merge branch 'master' of https://github.com/d-mon-/brookesTeam5.git

Conflicts:
	Garage/src/com/brookes/garage/controller/CarModuleController.java
	Garage/src/com/brookes/garage/controller/CustomerDetailsController.java
	Garage/src/com/brookes/garage/controller/RepairModuleController.java
	Garage/src/com/brookes/garage/dao/jpa/JpaCarDao.java
	Garage/src/com/brookes/garage/dao/jpa/JpaCustomerDao.java
	Garage/src/com/brookes/garage/dao/jpa/JpaEstimateDao.java
	Garage/src/com/brookes/garage/dao/jpa/JpaModelDao.java