memcmp added to stdlib module

stl/stdlib.c

@@ -0,0 +1,8 @@
+int memcmp(const void* left, const void* right, const unsigned length) {
+	for(unsigned i=0;i<length;i++) {
+		if(left[i] != right[i]) {
+			return 1;
+		}
+	}
+	return 0;
+}

stl/stdlib.h

@@ -0,0 +1 @@
+int memcmp(const void* left, const void* right, const unsigned length);