user: implement mlibc as the libc, finally.

It's finally done..

Signed-off-by: kaguya <vpshinomiya@protonmail.com>

user/include/mlibc/tests/ansi/strverscmp.c

@@ -0,0 +1,18 @@
+#include <string.h>
+#include <stdlib.h>
+#include <assert.h>
+
+int main() {
+   int res;
+
+   res = strverscmp("jan1", "jan10");
+   assert(res < 0);
+
+   res = strverscmp("jan11", "jan10");
+   assert(res > 0);
+
+   res = strverscmp("jan1", "jan1");
+   assert(res == 0);
+
+   return 0;
+}