make `current_user` available in jinja templates

Can jinja templates get current_user variable access without passing it explicitly? Like Flask-Login does, its quite convinient

[vimalloc]

Seems totally reasonable to me! I'll look into seeing what that entails when I have some time!

[vimalloc]

I added a configuration option to allow this. I did not turn it on by default because it's conceivable it would be a breaking change. Once I get another release pushed out you can turn it on like this:

JWTManager(app, add_context_processor=True)

or

jwt.init_app(app, add_context_processor=True)

Cheers!