More SVG rendering de-dup.
More SVG rendering de-dup.
Refactor ts/gx workflow svg rendering slightly so they look more similar.
More SVG rendering de-dup.

Using more conservative logic from the tool shed - not sure picking random connections the way it is doing however is appropriate.
More SVG rendering de-dup.
More SVG rendering de-dup.
More SVG rendering de-dup.
Add unit test to merely walk through new workflow render module...

...small fix found by test.
Ensure elementtree is required in workflows module.
Some very basic tests and docs for workflow modules.