move most of the files from esm to esm3, keep common code in esm; this is make space for a future with esm4

esm typo

esm typo

components/esm3/creaturestate.cpp

@@ -0,0 +1,31 @@
+#include "creaturestate.hpp"
+
+void ESM::CreatureState::load (ESMReader &esm)
+{
+    ObjectState::load (esm);
+
+    if (mHasCustomState)
+    {
+        mInventory.load (esm);
+
+        mCreatureStats.load (esm);
+    }
+}
+
+void ESM::CreatureState::save (ESMWriter &esm, bool inInventory) const
+{
+    ObjectState::save (esm, inInventory);
+
+    if (mHasCustomState)
+    {
+        mInventory.save (esm);
+
+        mCreatureStats.save (esm);
+    }
+}
+
+void ESM::CreatureState::blank()
+{
+    ObjectState::blank();
+    mCreatureStats.blank();
+}