fix:IdentifyManager的小bug（异常值判断）

fix:引入mgmt.Exception(解决编译错误)
add:IdentifyManager单元测试

src/main/java/packet/CPacket.java

@@ -3,6 +3,7 @@ package packet;
 import com.sun.xml.internal.ws.api.message.Packet;
 import component.*;
 import encoding.*;
+import mgmt.MgmtException;
 
 /*
  * @Author: Wang Feng
@@ -177,7 +178,7 @@ public class CPacket implements InteractWithField, IEncodingAble {
             minPacket.identifierField.addIdentifier(dstIdentifierWrapper);
 
             return true;
-        } catch (EncoderException | BlockException | ComponentException e) {
+        } catch (EncoderException | BlockException | ComponentException | MgmtException e) {
             throw new PacketException("CPacket.fillDataToFields: " + e.getMessage());
         }
     }