First working version of messaging system integration

docs/index.md

docs/messaging.md

pom.xml

...ain/java/no/nibio/vips/logic/messaging/MessagingBean.java

...ips/logic/messaging/distribution/IVipsMessageHandler.java

...logic/messaging/distribution/VipsMessageInputHandler.java

...ps/logic/messaging/distribution/VipsMsgDummyDistImpl.java

...c/messaging/distribution/entity/DistributionTypeEnum.java

...ogic/messaging/distribution/entity/MsgDistResultEnum.java

...vips/logic/messaging/distribution/entity/MsgReceiver.java

...o/vips/logic/messaging/distribution/entity/MsgToSend.java

...vips/logic/messaging/distribution/entity/VipsMessage.java

...ogic/messaging/distribution/entity/VipsSendMsgResult.java

...gic/messaging/distribution/send/CSVTrafficFileLogger.java

...ogic/messaging/distribution/send/IDeliveryMsgHandler.java

...o/vips/logic/messaging/distribution/send/IMsgContent.java

...c/messaging/distribution/send/MailMsgDeliveryHandler.java

...ogic/messaging/distribution/send/SingleMsgSendResult.java

...c/messaging/distribution/send/SingleMsgSentStateEnum.java

...ic/messaging/distribution/send/SmsMsgDeliveryHandler.java