Move games/minetest to games/minimal and update README.txt

.gitignore

README.txt

games/minimal/mods/bucket/depends.txt

games/minimal/mods/bucket/init.lua

games/minimal/mods/bucket/textures/bucket.png

games/minimal/mods/bucket/textures/bucket_lava.png

games/minimal/mods/bucket/textures/bucket_water.png

games/minimal/mods/default/init.lua

games/minimal/mods/default/textures/crack.png

games/minimal/mods/default/textures/default_apple.png

games/minimal/mods/default/textures/default_book.png

games/minimal/mods/default/textures/default_bookshelf.png

games/minimal/mods/default/textures/default_brick.png

games/minimal/mods/default/textures/default_cactus_side.png

games/minimal/mods/default/textures/default_cactus_top.png

games/minimal/mods/default/textures/default_chest_front.png

games/minimal/mods/default/textures/default_chest_lock.png

games/minimal/mods/default/textures/default_chest_side.png

games/minimal/mods/default/textures/default_chest_top.png

games/minimal/mods/default/textures/default_clay.png