Implemented R# suggestions in Entity: -> Removed usings -> Made most members readonly -> Renamed members to use _name for private fields -> Added some assertions to behaviour categorisation
Implemented R# suggestions in Entity:
-> Removed usings
-> Made most members readonly
-> Renamed members to use _name for private fields
-> Added some assertions to behaviour categorisation

Signed-off-by: Martin Evans <fbe68550a3878a44ead7fa06f7b29f9942900ad3@gmail.com>

martindevans/Myre