patch: Mark obt as deprecated

Since moving origami components and related projects into a single repository, we no longer need or use origami-build-tools

patch: Do not verify that .npmignore does not include `demos/local`

We want to publish demo source but not demo builds.

For more see: https://github.com/Financial-Times/origami-build-tools/pull/1039

minor: Verify that .npmignore does not contain important files

Update ecmascript version to 2019

We're using node14, it's all good

patch: Only run the rejection handler if the promise from reading the file was rejected

v11.0.7

check just for the substring

patch: use the latest stable version of remark-preset-lint-origami-component

v11.0.6

use the latest stable version of remark-preset-lint-origami-component

patch: close the filehandler that fileExists creates

v11.0.5

Use fs.access instead of fs.open to avoid having to open and close fi…

patch: Skip pa11y tests when the `--ignore-bower` flag is set.

v10.9.1

Add missing semicolon

patch: use fs/promises instead of making promisied versions ourselves

v11.0.4

use fs/promises instead of making promisied versions ourselves

patch: do not run sass compilation test if there is no main sass file

v11.0.3

do not run sass compilation test if there is no main sass file

patch: Remove requirement that the primary mixin produces css by default

Not all components provide css by default for a particular brand, for example o-fonts' whitelabel mode has no css.
Percy's visual testing catches any regression a component would have if it used to produce css and no longer does