Javadoc improvements per checkstyle

By: md_5 <git@md-5.net>

paper-api/src/main/java/org/bukkit/material/Banner.java

@@ -19,7 +19,6 @@ public class Banner extends MaterialData implements Attachable {
     }
 
     /**
-     *
      * @param type the type
      * @param data the raw data value
      * @deprecated Magic value

paper-api/src/main/java/org/bukkit/material/Cauldron.java

@@ -18,7 +18,6 @@ public class Cauldron extends MaterialData {
     }
 
     /**
-     *
      * @param type the type
      * @param data the raw data value
      * @deprecated Magic value
@@ -29,7 +28,6 @@ public class Cauldron extends MaterialData {
     }
 
     /**
-     *
      * @param data the raw data value
      * @deprecated Magic value
      */

paper-api/src/main/java/org/bukkit/material/ExtendedRails.java

@@ -33,6 +33,7 @@ public class ExtendedRails extends Rails {
     }
 
     /**
+     * {@inheritDoc}
      *
      * @deprecated Magic value
      */

paper-api/src/main/java/org/bukkit/material/Step.java

@@ -74,16 +74,17 @@ public class Step extends TexturedMaterial {
     }
 
     /**
+     * {@inheritDoc}
      *
      * @deprecated Magic value
      */
-    @Deprecated
     @Override
     protected int getTextureIndex() {
         return getData() & 0x7;
     }
 
     /**
+     * {@inheritDoc}
      *
      * @deprecated Magic value
      */

paper-api/src/main/java/org/bukkit/material/package-info.java

@@ -0,0 +1,5 @@
+/**
+ * Classes that represents various voxel types and states.
+ */
+package org.bukkit.material;
+

paper-api/src/main/java/org/bukkit/material/types/package-info.java

@@ -0,0 +1,4 @@
+/**
+ * Classes relevant to specific material types.
+ */
+package org.bukkit.material.types;