version 3 (#4756)

* Validate input to BadgeFactory.create() (#3875)

* validate input to create()

* remove deprecated properties (#3881)

* remove BadgeFactory class (#3884)

* Template literal templates (#4459)

- Remove use of the doT template library and move to generating SVG output using javascript template literals.
- Drop SVGO and mostly manually implement the optimisations.
- Add a bunch more tests

Co-authored-by: Paul Melnikow <github@paulmelnikow.com>

* drop raster support in package CLI (#4523)

* drop raster support in package CLI
* update docs

* rename gh-badges package to badge-maker

* rename gh-badges dir to badge-maker

* update relative imports and other refs to in parent dir

'gh-badges' --> 'badge-maker'

* update snyk service tests

This change is only tangentially related

We've used the shields repo as an example for these tests so
moving files around in our repo has a knock-on effect on them

* add missing type hints to dev style page

* write the changelog/migration guide for v3

* use extension in README CLI example

* update CLI help

whoops - missed this in #4523

* bump version

* update for self-hosting users

* README updates

* drop .format param from CLI, always output SVG

* Change text[] to label and message, Remove JSON output

- Change text[] to label and message
- Fix message only badge
- Remove JSON output format
- Update the docs

* update package-lock

* rename 'template' to 'style'

* handle invalid styles in coalesceBadge

* ensure makeBadge is passed a string for template in coalesceBadge()

issue #4925

* fix (logo/no label text/label color specified) case

issue #4926

* add example of (logo/no label text/label color specified) to style debug page

* update type defs

* padding fix for FTB style

Co-authored-by: Paul Melnikow <github@paulmelnikow.com>