Add Infix Notification support

Add capability to use Infix Notification support.

Sample:

public class Foo:
    public fun Bar(value:Int)->Int:
        return value * 2
    end
end

public class Program:
    public fun Main():
        val foo = Foo()
        Console.WriteLine(foo Bar 10)
    end
end

Reference: https://ja.wikipedia.org/wiki/%E4%B8%AD%E7%BD%AE%E8%A8%98%E6%B3%95

revn-project / Revn

Add Infix Notification support #6