LibC: Add some new functions

libc/include/assert.h

@@ -0,0 +1,5 @@
+#pragma once
+
+#include <stdlib.h>
+
+#define assert(expr) { if (!(expr)) abort(); }

libc/include/sys/param.h

@@ -0,0 +1,4 @@
+#pragma once
+
+#define MIN(a, b) ((a) < (b) ? (a) : (b))
+#define MAX(a, b) ((a) > (b) ? (a) : (b))