The git repository for the HEAD version is unstable.

 - Add unit test case for ethernet etf connection
 - Add unit test case for ethernet etf send functionality

Change-Id: I1bfba13b5c80e2b302bc46e1f616af77a1291bc1

 - Add unit test case for ethernet connection
 - Add unit test case for ethernet send functionality

Change-Id: If2ec7876f1a3d8b671c43a1d578233443dbeee6f

 - Modify application to calculate transmission time
 - Modify application to pass SOCKET_PRIORITY and ETF related socket configuration
 - Remove UDP related includes and functions

Change-Id: Ic19ec9a509c2557ddc2b2b802fcfa4642102ded7

 - ETF socket structure added in connection config
 - Used the same on socket configuration while opening socket

Change-Id: I2d21cdd2bc1c9769299aa63b49c1da892b59080d

 - New transport file created ua_pubsub_ethernet.c
 - Modification are removed in ethernet and udp .c files
 - New transport settings added for ETF functionality

Change-Id: Id11b1a06f67a8f96cd8713415f6b8472fae0b532

 - Thread creation has been integrated with addRepeatedCallback
 - Introduction of RT Fixed offsets
 - Change from Datetime nodes to UInt64 nodes(for RT)

Change-Id: I361a1027dfe633e9b36d25bb74dad6d3a5774e01

 - Application design change to run Publisher
   and Subscriber in same core(core 2)
 - User application runs in core 3
 - Three thread application design
   (Publisher, Subscriber, User application)
 - TODO:Implement spin locks for threads

Change-Id: I7c4a9bc685c9395d058b4cce71cb1ea9ffef61a8

 - Run time triggered PubSub application using ETF at a publishing interval
   of 250 microseconds with qbv offset of 25us
 - Integrate time triggered functionality and publish
   OPCUA PubSub packets at calculated transmission time
 - Handle PubSub application for UDP and Ethernet over UADP
 - Implement Publisher and Subscriber as threads and handle
   in same core
 - Integrate target variable implementation in Subscriber thread
 - TODO: Write unit test cases to ensure no memory leaks are possible

Change-Id: I50982a32e126de82f4adb5e07b1ec626c0527f26