Create SFG

Description of issue:

Implement the ability to create a signal flow graph (SFG) consisting of already defined operations. The SFG should be able to handle any number of in/output ports to it.

Linked Requirements:

( 17, 18, 19 )

Potential Issues:

None

Blockers:

( #5 (closed), #7 (closed), #8 (closed) )

Issue Requirements:

1. A SFG should be able to be created from any number of defined operations.
2. A SFG should be able to handle any number of in/output ports to it.
3. A new operation should be able to be added to an SFG.

Comment:

More on SFG's can be found under Utbildning/introduction.pdf in the drive.