add package-info files for api and coreapi package documentation

api/src/main/java/com/seibel/distanthorizons/api/package-info.java

@@ -0,0 +1,5 @@
+/**
+ * <strong> Start Here </strong> <br>
+ * {@link com.seibel.distanthorizons.api.DhApi} has almost every method you would want.
+ */
+package com.seibel.distanthorizons.api;

api/src/main/java/com/seibel/distanthorizons/coreapi/package-info.java

@@ -0,0 +1,11 @@
+/**
+ * <strong> Only For Internal Use </strong> <br> <!-- don't appear -->
+ * Everything in here for DH internally use. <br><br>
+ * 
+ * You can use objects and methods from here if you want, (I'm a javaDoc, not the cops)
+ * but using anything from this package is unsupported and may change at any time. <br><br>
+ * 
+ * When in doubt, if a method starts with "DhApi" it is safe to use, and we will
+ * do our best to avoid breaking changes.
+ */
+package com.seibel.distanthorizons.coreapi;