feat: port fastbin to casbin

[BustDot]

Replace: #285

[casbin-bot]

@Nekotoxin please review

[leeqvip]

@BustDot @hsluoyz I think this is a minority scene, and its model and policy must comply with specific rules. It should not be brought into the main repository, which would be very bloated. If it must be done, I think there can be another extension library based on pycasbin.

[BustDot]

@BustDot @hsluoyz I think this is a minority scene, and its model and policy must comply with specific rules. It should not be brought into the main repository, which would be very bloated. If it must be done, I think there can be another extension library based on pycasbin.

We can put a link to fastbin in readme. Users who are sensitive to performance can refer it to achieve their own model.

[leeqvip]

Now I have two ideas:

1. Create another repository
2. Still in pycasbin, the principle of minimal intrusion is adopted, so create a new FastEnforcer, like this:

class FastEnforcer(Enforcer):
    def new_fast_model():
        m = new FastModel
        # ...
    def enforce(self, *rvals):
        if isinstance(self.model, FastModel ):
            # ...

[leeqvip]

Now I have two ideas:

1. Create another repository
2. Still in pycasbin, the principle of minimal intrusion is adopted, so create a new FastEnforcer, like this:

class FastEnforcer(Enforcer):
    def new_fast_model():
        m = new FastModel
        # ...
    def enforce(self, *rvals):
        if isinstance(self.model, FastModel ):
            # ...

@BustDot Let’s implement it in the second way for the time being.

[hsluoyz]

@leeqvip @BustDot the 2nd way FastEnforcer is good

[hsluoyz]

@leeqvip plz review

[github-actions]

🎉 This PR is included in version 1.28.0 🎉

The release is available on:

• v1.28.0
• GitHub release

Your semantic-release bot 📦🚀

[hsluoyz]

@BustDot add this new feature to the docs page after: https://casbin.org/docs/superadmin