SignalBlocks should also include an installable library

[neeraj9]

At present the project is not installable like a library. Well at least not in true sense. Additionally, there are many different moving parts which needs to be combined in a single umbrella. The examples may or may not be split into a different project.

The framework has the following components:

• core - The core of the library which forms the basis for writing usable blocks.
• socket - The socket related wrapper code (over system socket api) which is used by some of the
  blocks.
• blocks - The base blocks which provide a lot of useful functionality (for example sources, sinks, etc).
• http - A primitive (yet working) websocket server which hosts data results for websocket clients to view. There is even a cool demo in the examples subfolder.
• examples - Example applications to use the framework.
• test - Unit test based on a great (single header) test framework Catch.