Can I customize middlewareImpl or MiddlewareFunc?

I'd like to use this extension but I want to redefine it's core function. Can I do this?

**What I actually want to do**

I want not to terminate request if JWT is wrong or empty like here: https://github.com/appleboy/gin-jwt/blob/633d983b91f09beefb1128c4558d4642a379c602/auth_jwt.go#L350

But instead let each endpoint to decide what is allowed and what is not based on context["id"] which was set by middleware either to nil or User model.

So I want this middleware only to do all JWT stuff and `c.Set(mw.IdentityKey, identity)` but not to make any 401 respond.

If I can do it now - can you show how?

Start with auth_jwt.go around line 350 and inspect the middlewareImpl and MiddlewareFunc behavior described in the issue. Determine whether the middleware's JWT processing and identity-setting can be separated from its 401 response handling, then define the expected endpoint behavior for invalid or missing JWTs.

Written by the indexing model from the issue text.