Added shadow softener for evaluation, for deferred rendering it is simply enabled by dropping the files in - to disable it simply remove the files
The way this works is that hard shadows are being softened by shadow softener, soft shadows are being softened by both shadow softener and the Unity softening algorithm
Adjusted the quality settings accordingly to only use hard shadows (i.e. shadow softener) to see if it looks good, we could add the Unity softening for high quality settings if we wanted to
Configuring shadow softener is done by defines in the shader include file ShadowSoftenerConfig.cginc, it uses the default values for now
Cool features of shadow softener are for example soft point light shadows and less dithering due to PCF