Fixing findAllAttributes() method in AttributeRepository
Fixing validation for project entities
Adding missing setter in EntityAttributeValue
Adding getter for ID in ChoiceAttributeChoice, updating ChoiceAttribute
Updating project form build logic to include choice attribute logic
Service-ifying some forms for injection
Merge branch 'feature/project-attribute-builder' of github.com:tickit-project/tickit into feature/project-attribute-builder