Add functions and int vars

source/tegraexplorer/script/functions.h

@@ -0,0 +1,13 @@
+#pragma once
+#include "../../utils/types.h"
+
+typedef void (*func_void_ptr)();
+typedef int (*func_int_ptr)();
+
+typedef struct {
+    char *key;
+    func_int_ptr value;
+    u8 arg_count;
+} str_fnc_struct;
+
+int run_function(char *func_name, int *out);