Added solarmana mod (first version)

mods/solarmana/README.txt

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+Solar Mana Mod [solarmana]
+==========================
+
+A mana regeneration controller: only regenerate mana in sunlight
+or on special nodes.
+
+Version: 0.1.0
+Licence: LGPL 2.1 or later
+
+Report bugs or request help on the forum topic.
+
+Description
+-----------
+
+This is a mod for MineTest. It depends on, and modifies / works
+with the Mana mod 'mana' by Wuzzy. Instead of constantly
+regenerating mana, this mod requires players to stand in direct
+sunlight for regeneration to kick in.
+
+Since many magic users prefer their homes and offices to actually
+have a roof, standing on specific node types (currently wooden
+planks and gold blocks) will also regenerate mana.
+
+Dependencies
+------------
+* mana: https://forum.minetest.net/viewtopic.php?f=11&t=11154
+
+Installation
+------------
+
+Unzip the archive, rename the folder to to 'solarmana' and
+place it in minetest/mods/
+
+(  Linux: If you have a linux system-wide installation place
+    it in ~/.minetest/mods/.  )
+
+(  If you only want this to be used in a single world, place
+    the folder in worldmods/ in your worlddirectory.  )
+
+For further information or help see:
+http://wiki.minetest.com/wiki/Installing_Mods