Add Player Client Options API

paper-api/src/main/java/com/destroystokyo/paper/SkinParts.java

@@ -0,0 +1,20 @@
+package com.destroystokyo.paper;
+
+public interface SkinParts {
+
+    boolean hasCapeEnabled();
+
+    boolean hasJacketEnabled();
+
+    boolean hasLeftSleeveEnabled();
+
+    boolean hasRightSleeveEnabled();
+
+    boolean hasLeftPantsEnabled();
+
+    boolean hasRightPantsEnabled();
+
+    boolean hasHatsEnabled();
+
+    int getRaw();
+}