refactor(editorView): rename pixi to editorView with cleanup
refactor(build): build angular templates into js files with grunt

- Supports grunt watch
- Use grunt-html2js to generate templates.
feat(editorView): show status text while loading maps

- Helps remove appearance of app locking when loading HUGE files.
fix(build): version bower.json
chore(repo): add gitignore and cleanup some trash
refactor(platform): use async file read in platform
refactor(app): set file system view to root in maps path
chore: ignore bower_components
refactor(tileMap): remove dead code
feat(tiledLoader): support inline tile sets

- For tile sets specified inline with the map file, rather than an externally referenced tsx file.