Adding support for more file types

[emilk]

Hi, and thanks for a great tool!

There are some files that typos misses, because it doesn't know about their extension. In my project we have a bunch of shaders, written in wgsl. How would I go about convincing typos to also check wgsl files? I'd be happy to make a PR!

I checked CONTRIBUTING.md but found nothing about how to add support for more file types.

[epage]

What is it you are seeing where typos isn't supporting a file?

File types are used for per-file-type configuration and we don't need to know about a file type to check it, relying solely on the default configuration.

[emilk]

I had a typo in wgsl that wasn't caught by typos, so I checked typos --help which says:

--type-list Show all supported file types

and since wgsl is not found in typos --type-list, I conclude that wgsl is not a supported file type 🤷

[epage]

That wording was taken from rg

$ rg -h | rg type
    rg [OPTIONS] --type-list
    -t, --type <TYPE>...                         Only search files matching TYPE.
        --type-add <TYPE_SPEC>...                Add a new glob for a file type.
        --type-clear <TYPE>...                   Clear globs for a file type.
        --type-list                              Show all supported file types.
    -T, --type-not <TYPE>...                     Do not search files matching TYPE.

While it is referring to supported in the other arguments, we are referring to being supported in the configuration for special casing