[APOLLO-2321] - added new entity for correspondence and annotations for relationships. Fixed CS on classes were code was changed.
[APOLLO-2321] - Added a trait for correspondence which is used by Person and CaseItem entities
[APOLLO-2047] - created method which creates S3 filename
[#APOLLO-2047] Parent added Correspondence event

Parent info added to Correspondence Event in the audit table
[#APOLLO-2047] Reformatted code to PSR (phpstorm)
Moved comments to docbloc
[#APOLLO-2047] Added Correspondence Type
[#APOLLO-2321] Renamed type from 'number' to 'int'
Merge pull request #22 from ministryofjustice/APOLLO-2047

[APOLLO-2321] - added new entity for correspondence and annotations for ...