Fix bugs on compiler, implement lambda expression

	modified:   Fulyn/Fulyn.csproj
	modified:   Fulyn/Processors/Compiler.cs
	modified:   Fulyn/Processors/Parser.cs
	modified:   Fulyn/Program.cs
	new file:   Fulyn/Samples/closure.fl
	deleted:    Fulyn/Samples/fibonatti.fl
	modified:   Fulyn/Samples/gcd.fl
	deleted:    Fulyn/Samples/gcd.ose
	modified:   Fulyn/Samples/gradation.fl
	deleted:    Fulyn/Samples/hello.fl
	deleted:    Fulyn/Samples/stdext.fl
	deleted:    Fulyn/Samples/sum.fl
	new file:   Fulyn/stddraw.fl
	renamed:    Fulyn/StdLib/stdlib.fl -> Fulyn/stdlib.fl
	modified:   OSC/Macro.cs
	modified:   OSC/Numbers.cs
	modified:   OSC/OSEGenerator.cs