Resolve "Generate PG from SFG"

Adds:

• A function that returns a nested list which describes the precedence of all of the output ports in an sfg. Output ports with different dependencies are handled correctly.
• A function that returns all components of a specified type_name in an sfg.
• Test cases covering both of above.
• Removal of the old precedence_graph and schema files.
• Updated class diagram with new precedence_graph functions.
• The inputs_required_for_output() implementation for SFG is now iterative and is nolonger is recursive.

Closes #25 (closed)

changed milestone to %Period 2 Kanban

added Feature development + 1 deleted label

mentioned in issue #25 (closed)

Realised that the current implementation doesn't consider the fact that different output ports can have different input dependencies. Will close this merge request for now until it is figured out if it has to be fixed or not.

closed

Recent changes have fixed the previous issue, now output ports with different dependencies are handled individually instead of being bundled together.

reopened

Requestin review @ivaha717 @jacwa448

assigned to @anglo547

I have also changed the inputs_required_for_output() implementation for SFG so that it nolonger is recursive.

changed the description

added Needs review label

removed Feature development label

approved this merge request

unapproved this merge request

added 6 commits

• 05bac1ad - Remove unnecessary line breaking
• f4fce198 - Remove unnecessary spacing
• 15dd9728 - Add helper method for traversing the SFG for the precedence list.
• 5f34120a - Remove unnecessary comments
• 94afff37 - Change class method type_name argument from self to cls
• 0c4f2e0e - Add some pylint fixes

Compare with previous version

added 4 commits

• 0c4f2e0e...16972202 - 3 commits from branch develop
• 4f597d0c - Merge with latest code from develop, change some '== False' to 'not' in test_sfg.

Compare with previous version