Add preview generator and update preview textures

3d_armor/textures/preview_index.txt

@@ -0,0 +1,44 @@
+3d_armor/textures/3d_armor_helmet_wood.png:head
+3d_armor/textures/3d_armor_chestplate_wood.png:torso
+3d_armor/textures/3d_armor_leggings_wood.png:legs
+3d_armor/textures/3d_armor_boots_wood.png:feet
+
+3d_armor/textures/3d_armor_helmet_cactus.png:head
+3d_armor/textures/3d_armor_chestplate_cactus.png:torso
+3d_armor/textures/3d_armor_leggings_cactus.png:legs
+3d_armor/textures/3d_armor_boots_cactus.png:feet
+
+3d_armor/textures/3d_armor_helmet_steel.png:head
+3d_armor/textures/3d_armor_chestplate_steel.png:torso
+3d_armor/textures/3d_armor_leggings_steel.png:legs
+3d_armor/textures/3d_armor_boots_steel.png:feet
+
+3d_armor/textures/3d_armor_helmet_bronze.png:head
+3d_armor/textures/3d_armor_chestplate_bronze.png:torso
+3d_armor/textures/3d_armor_leggings_bronze.png:legs
+3d_armor/textures/3d_armor_boots_bronze.png:feet
+
+3d_armor/textures/3d_armor_helmet_gold.png:head
+3d_armor/textures/3d_armor_chestplate_gold.png:torso
+3d_armor/textures/3d_armor_leggings_gold.png:legs
+3d_armor/textures/3d_armor_boots_gold.png:feet
+
+3d_armor/textures/3d_armor_helmet_diamond.png:head
+3d_armor/textures/3d_armor_chestplate_diamond.png:torso
+3d_armor/textures/3d_armor_leggings_diamond.png:legs
+3d_armor/textures/3d_armor_boots_diamond.png:feet
+
+3d_armor/textures/3d_armor_helmet_mithril.png:head
+3d_armor/textures/3d_armor_chestplate_mithril.png:torso
+3d_armor/textures/3d_armor_leggings_mithril.png:legs
+3d_armor/textures/3d_armor_boots_mithril.png:feet
+
+3d_armor/textures/3d_armor_helmet_crystal.png:head
+3d_armor/textures/3d_armor_chestplate_crystal.png:torso
+3d_armor/textures/3d_armor_leggings_crystal.png:legs
+3d_armor/textures/3d_armor_boots_crystal.png:feet
+
+3d_armor/textures/3d_armor_helmet_admin.png:head
+3d_armor/textures/3d_armor_chestplate_admin.png:torso
+3d_armor/textures/3d_armor_leggings_admin.png:legs
+3d_armor/textures/3d_armor_boots_admin.png:feet