Suggested fixes for use as a WP plugin

[alyxb]

This is a suggested fix to resolve issue using this package as a WP plugin without Composer.

I believe these are breaking changes to the Composer version, which does install the Auth0 package in the same namespace as the WP Rest API Auth package, therefore this should be treated as a draft PR for consideration to reconcile with Composer and Plugin support (I'm not sure the best way to do both).

I changed this to rely on the class names provided by the "Login by Auth0" WP plugin:

• WP_Auth0_IdTokenVerifier
• WP_Auth0_SymmetricVerifier

as in the current version in main, the referenced classes (TokenVerifier, SymmetricVerifier) are missing.

This also includes some troubleshooting tips in the README to help others in general.

[joshcanhelp]

@alyxb - Thank you for pointing this out!

In the README, it mentions grabbing the latest ZIP but, as you mentioned, that ZIP does not include the required Composer dependencies. I thought we had that wired up (there is a workflow for it) but I guess not.

For now, running composer install in the plugin directory should work without changes to the files but let me dig a bit and get this working how it should. It should work with both install methods and I'm not sure if the WP token verifier is a direct replacement.

[joshcanhelp]

Thanks again for this PR! It looks like this will work fine and I can just take the out the dependency for the other class. There is not a great way to use this without the Auth0 WP plugin installed so I think it's fine to rely on that.