Performance optimization techniques

[ivaylokenov]

• [x] Creating objects with zero or 1 constructor can be cached
• [ ] Action call with no or constant parameters can be cached as delegates
• [ ] Deep reflection comparing can use cached getter delegates
• [ ] Action return types can be cached too
• [x] Route value constants can be extracted without compiling,
• [ ] Remove LINQ and enumerations
• [ ] Reflection caches
• [ ] Provide a way for direct action call without expressions
• [ ] Attribute searching can be done from a dictionary