Add Role and Permission Policy Methods to NovaPermissions

[HenriqueSPin]

This pull request introduces two new methods to the NovaPermissions class: rolePolicy and permissionPolicy and adds eager loading of permissions relationship on the Role resource.

These additions provide more flexibility in defining custom role and permission policies within the NovaPermissions package and improve the performance of the Role resource index page.

Please review the changes and let me know if there are any issues or suggestions for further improvements. Thank you!

[HenriqueSPin]

@leandrogehlen Can you take a look, please?

Ou: Pode dar uma olhada, irmão?! :)

[leandrogehlen]

Hello @HenriqueSPin. I'm sorry for the delay.

Please add changelog entry (1.6.2)

[HenriqueSPin]

Done @leandrogehlen

[leandrogehlen]

The cache permissions relation issues should be another PR.

I'm not sure but laravel-permission uses cache by default

https://spatie.be/docs/laravel-permission/v6/advanced-usage/cache

[HenriqueSPin]

This is a

The cache permissions relation issues should be another PR.

I'm not sure but laravel-permission uses cache by default

https://spatie.be/docs/laravel-permission/v6/advanced-usage/cache

This is not related to the cache from the Spatie package. This is to avoid the query in Role::loadPermissions() to run on every line on an index page.

[leandrogehlen]

Please, remove permissions relation issues from this PR.

I'm not sure about this implementation.

I belive that should be use cache functionality for it.

[HenriqueSPin]

Done. Removed performance related tweaks.

[HenriqueSPin]

@leandrogehlen You forgot to create the tag 1.6.2.

[leandrogehlen]

No, i'm waiting #50, to release the version.