Add in the ability to set the name attribute on the javax.persistence.Entity

Add to the entity command and also the org.springframework.roo.addon.entity.RooEntity annotation that can be used to set the name attribute of the javax.persistence.Entity annotation in the _Roo_Entity.aj file.

Example:

@RooEntity(entityName = "FullTime.Employment")

Would produce the following

declare @type: Employment: @Entity(name = "FullTime.Employment");

and also have correctly use the name when creating the finder methods.