Initial setup for CLion

ANSLLM/pch.h

@@ -0,0 +1,18 @@
+// pch.h: This is a precompiled header file.
+// Files listed below are compiled only once, improving build performance for future builds.
+// This also affects IntelliSense performance, including code completion and many code browsing features.
+// However, files listed here are ALL re-compiled if any one of them is updated between builds.
+// Do not add files here that you will be updating frequently as this negates the performance advantage.
+
+#ifndef PCH_H
+#define PCH_H
+
+// add headers that you want to pre-compile here
+#include "framework.h"
+#include <memory>
+#include <string>
+#include <string_view>
+#include <vector>
+#include <mutex>
+
+#endif //PCH_H