Refactor move package - server.type.DataBind to server.bind, server.text.json -> server.json

The DataBind classes don't need to be in with server.type anymore.
The server.text.json package can just reduce package nesting.

ebean-core/src/test/java/io/ebeaninternal/server/type/BasePlatformArrayTypeFactoryTest.java

@@ -1,6 +1,7 @@
 package io.ebeaninternal.server.type;
 
 import io.ebean.core.type.ScalarType;
+import io.ebeaninternal.server.bind.DataBind;
 import org.postgresql.util.PGobject;
 
 import java.sql.SQLException;

ebean-core/src/test/java/io/ebeaninternal/server/type/JsonTester.java

@@ -6,7 +6,7 @@ import com.fasterxml.jackson.core.JsonParser;
 import com.fasterxml.jackson.core.JsonToken;
 import io.ebean.config.JsonConfig;
 import io.ebean.core.type.ScalarType;
-import io.ebeaninternal.server.text.json.WriteJson;
+import io.ebeaninternal.server.json.WriteJson;
 
 import java.io.IOException;
 import java.io.StringWriter;