Adding runtime reflection based serializers.
Fix a code for testing, it causes no-newline EOF and invalid path output
Make SerializerBuilder<TObject>.GetTargetMembers() stricter

Remove non-accessible members from the target:
  * properties which has no public setter, or
  * fields which is initonly,
  * moreover, it is not a addable collection nor dictionary.
Update NuGet component files for package restoring
Move member extraction code for accurate testing.
Add member extraction test.
Make annotated non-public members are serializable (issue #33).
Fix .NET 3.5 build.
Update mpu binaries.
Update changelog.
Fix concurrency bug.
Add support for non-public annotated member serialization.
Update packages.
Merge branch 'master' into local-0.5
Improve tests.
Add reflection based serializer tests.
Fix default collection serializers.
Add UnpackToCore
Add UnpackToCore
Code clean up.