add armor specs to rainbow armor, add technic armor mod, add redef mod, add technic recycle mod

mods/redef/mod.conf

@@ -0,0 +1,16 @@
+name = redef
+title = Minor Redefinitions
+depends = default
+description = """
+Changes smaller things that are issues for Minetest Game that are technically fixable but won’t be fixed due to several non-technical reasons.
+
+The following redefinitions are applied by default:
+
+* 3D Ladders (only works with default ladder texture shape)
+* Maximum stack size set to 100
+* Grass selection box height set to 2
+* World-aligned textures for all stairs and slabs
+* Properly rotate nodes from some well-known mods
+"""
+release = 28636
+author = Linuxdirk