* Change serialization reading to only do type checks once per type
* Optimize for sealed types in arrays
* Oops the context
* Fix ISelfSerialize node type and null values
* Add int read test
* Remove nullability from constructor and property of DeserializedValue
* Add clearing readers to serialization shutdown
* Fix struct populate default values
Remove some notnull constraints
* Replace robust gen with normal il generator
* Add serialization write benchmark
* Add baseline test and rename AddNode to Add in mapping extensions
* Optimize serialization writing
* Make reader delegate private
* Unhardcode baseline test
* Make serialization work with backing fields automatically
* Fix not taking priorities into account, make the test fail when that is the case
* Turn fieldDefs back into a list
* Format it better
* Remove GetInheritanceBehaviour, expose immutable array of base field definitions
