Add local HLS dev setup: clangd, pragma highlighting + linting, local C-sim

Practicals/practical-3b/game_of_life_practical3b/gameoflife.h

@@ -0,0 +1,14 @@
+#ifndef __GAMEOFLIFE_H__
+#define __GAMEOFLIFE_H__
+
+#include <stdio.h>
+#include <stdlib.h>
+
+typedef unsigned int uint32;
+
+void game_of_life_step(
+    const uint32 in_words[4],
+    uint32 out_words[4]
+);
+
+#endif