refactor: Move codec abstraction into own package

Author: mvitz

src/main/java/com/innoq/spring/cookie/flash/CookieFlashMapManager.java

@@ -15,6 +15,7 @@
  */
 package com.innoq.spring.cookie.flash;
 
+import com.innoq.spring.cookie.flash.codec.FlashMapListCodec;
 import com.innoq.spring.cookie.security.CookieValueSigner;
 import org.springframework.util.Assert;
 import org.springframework.web.servlet.FlashMap;

src/main/java/com/innoq/spring/cookie/flash/FlashMapListCodec.java renamed to src/main/java/com/innoq/spring/cookie/flash/codec/FlashMapListCodec.java

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package com.innoq.spring.cookie.flash;
+package com.innoq.spring.cookie.flash.codec;
 
 import org.springframework.web.servlet.FlashMap;
 

src/main/java/com/innoq/spring/cookie/flash/codec/jackson/JacksonFlashMapListCodec.java

@@ -19,7 +19,7 @@
 import com.fasterxml.jackson.core.type.TypeReference;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.module.SimpleModule;
-import com.innoq.spring.cookie.flash.FlashMapListCodec;
+import com.innoq.spring.cookie.flash.codec.FlashMapListCodec;
 import org.springframework.util.Assert;
 import org.springframework.web.servlet.FlashMap;