Code cleanup

[wu-clan]

Should more template code be included?

I suggest keeping only the base code here, the api code should not be comprehensive

[downdawn]

(The display has been broken for the past two days)

I think the basic permission module can be added.

I even hope that it can be made like go-admin (also based on Casbin), because I find that there are few similar projects on the python web, which is more intuitive and can attract more people.

[wu-clan]

#11