Made glass not remove tiles under itself and updated 2 textures

- Glass is no longer solid and is now transparent
- Updated Clock and Wallpaper textures

src/main/java/ru/windcorp/progressia/test/TestBlockLogicGlass.java

@@ -0,0 +1,22 @@
+package ru.windcorp.progressia.test;
+
+import ru.windcorp.progressia.common.world.block.BlockFace;
+import ru.windcorp.progressia.server.world.block.BlockLogic;
+
+public class TestBlockLogicGlass extends BlockLogic {
+
+	public TestBlockLogicGlass(String id) {
+		super(id);
+	}
+
+	@Override
+	public boolean isSolid(BlockFace face) {
+		return false;
+	}
+
+	@Override
+	public boolean isTransparent() {
+		return true;
+	}
+
+}

src/main/java/ru/windcorp/progressia/test/TestContent.java

@@ -98,7 +98,7 @@ public class TestContent {
 		
 		register(new BlockData("Test:Glass"));
 		register(new BlockRenderTransparentCube("Test:Glass", getBlockTexture("Glass")));
-		register(new BlockLogic("Test:Glass"));
+		register(new TestBlockLogicGlass("Test:Glass"));
 		
 		register(new BlockData("Test:Sand"));
 		register(new BlockRenderOpaqueCube("Test:Sand", getBlockTexture("Sand")));