Refactored some code from InWorld into methods in CharacterData

common/gameplay/sanity_check.cpp

@@ -0,0 +1,15 @@
+#include "account_data.hpp"
+#include "character_data.hpp"
+#include "client_data.hpp"
+#include "combat_data.hpp"
+#include "enemy_data.hpp"
+#include "statistics.hpp"
+
+/* DOCS: Sanity check, read more
+ * Since most/all of the files in this directory are header files, I've created
+ * this source file as a "sanity check", to ensure that the above header files
+ * are written correctly via make.
+ * 
+ * Oddly enough, I'm pretty sure this is the first directory compiled in a
+ * clean build.
+*/