Need example of casbin

[samarpan-b]

Is your feature request related to a problem? Please describe. Right now we dont have any complete example of casbin provider of authorization

Describe the solution you'd like Add example, documentation and blog

Describe alternatives you've considered None.

Additional context None

[samarpan-b]

@mlakdawala-sf @sf-kansara @IshuSF any one of you want to take a hit at this ?

[hsluoyz]

@Zxilly

[akshatdubeysf]

@sumiter92