Added port constrain to list scheduler, so that user can specify an upper bound on memory accesses.
Changed so that if the user does not specify a constraint on Inputs/Outputs they will be assumed to be 1. (This in order to prepare for doing the same thing for resources)
Added example showcasing the memory constraining.
Placed current tests into a unit test folder.
Added two integration tests going from SFG generation to architecture.
Bumped the timeout from 20s to 30s for the pipeline.
(Also, now that we have split testing we could add another stage in the CI for it.)
