added getAllSchema function

[pavanydg]

I have added the getAllSchema function along with its types.
Also added test files for the function.

[jdesrosiers]

Looks like a great start.

You have some linting issue you'll need to clean up. I suggest installing an ESLint plugin in your editor to get notified of these issues as you work so you can fix them immediately as they come up. Even then you should always run npm run lint before committing. Even I forget sometimes, but that's why it runs automatically when code is pushed.

I left a few notes inline. Please have a look.

I'm not sure about the name of the function (getAllSchemas). The function isn't actually returning schemas, it's returning schema identifiers. So, the name seems misleading. Also, I feel like it should say that they are "registered" schemas. In this implementation, schemas can come from the file system, or the web, or other places if configured to do so. The schemas being returned are only the schemas that are registered, not necessarily "all" schemas. That would make it something like getAllRegisteredSchemaUris. That seems a bit long. If you have another suggestion that meets the criteria I just described, then let me know, but it's ok if it ends up being a long name.

Last thing, make sure to add this function to the README. It doesn't need an example or anything, just add an entry in the API section. It can go next to the registerSchema and unregisterSchema entries.

[pavanydg]

closes #74

[jdesrosiers]

Looks good! Just a couple minor things to clean up and it will be ready to go.

[jdesrosiers]

Thanks @pavanydg 🎉

[pavanydg]

Thank you for the guidance.