Add Format and apply rules

[MikeAlhayek]

This PR apply some cleanup.

Also adds char support for StartsWith, EndsWith, and Contains

[sebastienros]

Looks suspicious, revert

[sebastienros]

This is not supported, only StartsWith(string) is bound

[sebastienros]

This could be added, but will require a custom test too, see static DefaultQuery()

[sebastienros]

Error Message:
   System.InvalidOperationException : Operation is not valid due to the current state of the object.
  Stack Trace:
     at System.Reflection.RuntimeMethodInfo.GetGenericMethodDefinition()

Probably due to the changes methods (string to char) that I mentioned. It can't find the method (the one accepting a char) and tried to get the generic form but fails

In DefaultQuery there is MethodMappings.TryGetValue(methodInfo.GetGenericMethodDefinition(), out action) which should check if it's a generic method before.

You still need to use the "string" based one