Implement presets wildcards

[piotr-sekara]

Right now Highway is supporting only one preset per given steps. Sometimes it happens that two different presets runs the same steps but it cannot be declared also as default preset because pull request workflow is calling default. Currently there's no other option than just add another preset with the same steps as the other preset contains.

Possible solutions:

1. Implement wildcards e.g. preset test/*: will be called by preset: test/staging and preset: test/release
2. Supporting multiple presets separated by comma e.g. staging,release: