Added first version of metatools

- Allowed admins to read metadatas

mods/metatools/README.md

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+Minetest mod metatools
+######################
+
+A mod inspired by mgl512's itemframe issue
+
+# Authors
+ - LeMagnesium / Mg / ElectronLibre : Source code writer
+ - Ataron : Texture creater
+
+# Purpose
+This mod's aim is to provide a way for admins to navigate through any (ok, not
+ignores) nodes on the map, and see values of its metadatas at any of their
+stratum.
+
+# Media
+"metatools_stick.png" by Ataron (CC-BY-NC-SA)
+
+# Todo
+ - Add a way to SET the metadatas (will be complicated)
+ - Fix the LICENSE
+
+# Special thanks
+ - mgl512 (Le_Docteur) for its locked itemframe which gave me the idea of a tool
+allowing to see/edit metadatas
+ - Ataron who created the stick's texture