added postfix, break and return parsing

examples/generics.l

@@ -0,0 +1,4 @@
+u32 sum<T>(T x, T y)
+{
+	return x + y;
+}

examples/hello_world.l

@@ -0,0 +1,6 @@
+import test;
+
+i32 main()
+{
+	print_msg("Hello world!");
+}

examples/test.l

@@ -0,0 +1,10 @@
+import std::io;
+
+module log {
+
+void print_msg([u8] msg)
+{
+	printf("%s\n", msg);
+}
+
+}