Add caches toTypeContextFactory method to prevent multiple parsing of the same classes by PHPStan property extractor.

1. Add cache to intermediateTypeContext creation fromcreateFromClassName() andcreateFromReflection() by adding:

   • intermediateTypeContextCache proprety.
   • createIntermediateTypeContext() create the intermediateTypeContext if not found in cache.

2. Add cache tocreateFromClassName() by:

   • typeContextCache proprety.
   • extractingTypeContext creation to privatecreateNewInstanceFromClassName() method.
   • refactoringcreateFromClassName() to get theTypeContext from$this->typeContextCache, or creating it by callingcreateNewInstanceFromClassName() method.

3. Add a test to check that the results are cached.

This optimize deserialization and form validation.