Investigate possibility of C# (Mono) binding

[quyse]

At first glance it is harder than V8/Lua because Mono needs precompiled assemblies to expose C++ things for C#, so it may need a special compilation process.

[quyse]

Mono binding almost done. The method is generating assembly by making use of special helper assembly written in C#. Integration is not full tested yet, and ScriptConvertors' implementation (math types) is not ready yet.