Add minimal project infrastructure.
Simple drawing with dagre-d3
Refactoring: d3 dependency moved to JS level
Add txtml object
Complete renderer for POC

- Add parser (mock)
- Move graph related code to parser and txtml
- Update test page to chain parsing and rendering
Merge branch 'feature/simple-renderer' into develop
Add simple parser
Fix redraw issue on 'Submit' click
Fix empty lines crash during parsing
Merge branch 'feature/add-old-graph-cleanup' into develop
Digraph looks better
Test page update
Update README for 0.0.x
v0.0.1 Proof of Concept