Merge Resource Directory into the master

Merge Resource Directory into the master

Resource Directory Server:
• Hosting of RD (Server side)
• Respond to discovery request with the bias factor.
• Response after receiving publish resource and payload handling (Server side)
• Storage of resources at RD (Server side)
• /oic/res querying support with  a response in collection format.
Resource Directory Clients:
• API to initiate discovery of RD
• Publish resources to RD using the collection format.
• Stop Multicast API suport
Sample Applications:
• Server side application to start resource directory
• Thin-client side application to discover and publish resources to resource directory.
• Client to query resource published at the resource directory.

Change-Id: Iecd03cb26b231dc58ae1f5c30353c5a2514260bf
Signed-off-by: Habib Virji <habib.virji@samsung.com>