Add solutions for part 1

projects/08/FunctionCalls/SimpleFunction/SimpleFunction.vm

@@ -0,0 +1,16 @@
+// This file is part of www.nand2tetris.org
+// and the book "The Elements of Computing Systems"
+// by Nisan and Schocken, MIT Press.
+// File name: projects/08/FunctionCalls/SimpleFunction/SimpleFunction.vm
+
+// Performs a simple calculation and returns the result.
+function SimpleFunction.test 2
+push local 0
+push local 1
+add
+not
+push argument 0
+add
+push argument 1
+sub
+return