Show methods realisation for choosen chain #8
Description
It will be much more useful to have popup window, wich shows code that was used in given method.
For example strings doesn't have 'Reverse' method, but we can implement it by hands.
And for user who want to use our method it will be much easier to see how we made this function.
C# doesn't have built-in tools to get functions code as string, so we should make our methods as string, and then compile them on start of the program.