Began working on runner library

repl/lib_runner.h

@@ -0,0 +1,12 @@
+#pragma once
+
+#include "interpreter.h"
+
+int hookRunner(Interpreter* interpreter, Literal identifier, Literal alias);
+
+//file system API - these need to be set by the host
+void initDriveDictionary();
+void freeDriveDictionary();
+LiteralDictionary* getDriveDictionary();
+
+#define OPAQUE_TAG_RUNNER 100