add justfile syntax support

[Gictorbit]

Syntax:
add support for justfile syntax
just

Guideline Criteria:
[packagecontro.io link here]

[keith-hall]

https://packagecontrol.io/packages/Just
63 installs falls quite short of our guideline criteria... You can add it locally for yourself by following our readme btw :)

[gpskwlkr]

https://packagecontrol.io/packages/Just 63 installs falls quite short of our guideline criteria... You can add it locally for yourself by following our readme btw :)

I think you're link is quite wrong, what @Gictorbit meant was just cli tool which he linked. Respectively this is the actual link - Just cli

[sharkdp]

No, the link is correct. The just syntax in Sublime text (which we would need for bat) is not used by a lot of people. Please see https://github.com/sharkdp/bat/blob/master/doc/assets.md#criteria-for-inclusion-of-new-syntaxes

[sharkdp]

Also, please read https://github.com/sharkdp/bat#adding-new-syntaxes--language-definitions