blueprint -> blueprints/init

- Add lib/tasks/generate-from-blueprint
- Rework tests/acceptance/generate-test
- Rework lib/commands/generate command
- Rework tests/unit/commands/generate
- Tweak tests/acceptance/init-test
Drop loom-generators-ember-appkit from package.json template
Add literate test helpers
Add support for type on controller blueprint
Add component blueprint
Add helper test
Update test to kebab-case helper
Add simple model generator test
Add model generator and test
Add route generator and test
Add docs-in-comments to blueprints
Add route to router
Add ember-qunit imports to test blueprints
Fix model blueprint export
Add adapter blueprint
Add template and view blueprints

Also enhance assertFile
Add resource generator
Move server blueprint
Add initializer blueprint
Add mixin blueprint