fix including zfc.exe
fix netstandard dll

modify resolver priority for extend types.
add -u option for zfc.exe.

fixed serialize issue, serialize before value when mutate under non-tracked collections

improvement performance.

• add DirtyTracker.NullTracker property for use no use dirtytracker
• fix no use DirtyTracker correctly
• reduce garbage of deserialze class(use struct CacheSegment)

fix zfc.exe.

• fix -d option does not work correctly
• fix can't handle internal enum correctly
• fix can't generate {get;} only struct

Fix bugs, Enum array can not serialize.

can serialize zero member struct
improve Unity struct formatter serialization performance

Reduce IL2CPP generate code size on Unity
Add zfc.exe option

  -g, --gencomparekeyonly       [optional, default=false]Don't generate in EnumEqualityComparer except dictionary key
  -n, --namespace=VALUE         [optional, default=ZeroFormatter]Set namespace root name

Add three new zfc option.

  -d, --disallowinternaltype    [optional, default=false]Don't generate internal type
  -e, --propertyenumonly,       [optional, default=false]Generate only property enum type only
  -m, --disallowinmetadata,     [optional, default=false]Don't generate in metadata type