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/loadmisc.hpp

@@ -0,0 +1,43 @@
+#ifndef OPENMW_ESM_MISC_H
+#define OPENMW_ESM_MISC_H
+
+#include <string>
+
+namespace ESM
+{
+
+class ESMReader;
+class ESMWriter;
+
+/*
+ * Misc inventory items, basically things that have no use but can be
+ * carried, bought and sold. It also includes keys.
+ */
+
+struct Miscellaneous
+{
+    static unsigned int sRecordId;
+    /// Return a string descriptor for this record type. Currently used for debugging / error logs only.
+    static std::string_view getRecordType() { return "Miscellaneous"; }
+
+    struct MCDTstruct
+    {
+        float mWeight;
+        int mValue;
+        int mIsKey; // There are many keys in Morrowind.esm that has this
+                   // set to 0. TODO: Check what this field corresponds to
+                   // in the editor.
+    };
+    MCDTstruct mData;
+
+    unsigned int mRecordFlags;
+    std::string mId, mName, mModel, mIcon, mScript;
+
+    void load(ESMReader &esm, bool &isDeleted);
+    void save(ESMWriter &esm, bool isDeleted = false) const;
+
+    void blank();
+    ///< Set record to default state (does not touch the ID).
+};
+}
+#endif