Delegate permission filter to another method

[angeljqv]

This could help with third party customization of the package

It is the same code, only i did move it to his own method, it is NOT A BREAKING CHANGE, it could be helpful
This change is TESTED

Little and marginal optimitations(less duplicity)

laravel-permission/src/Traits/HasPermissions.php

Lines 132 to 150 in 67e54e2

	$permissionClass = $this->getPermissionClass();
	if (is_string($permission)) {
	$permission = $permissionClass->findByName(
	$permission,
	$guardName ?? $this->getDefaultGuardName()
	);
	}
	if (is_int($permission)) {
	$permission = $permissionClass->findById(
	$permission,
	$guardName ?? $this->getDefaultGuardName()
	);
	}
	if (! $permission instanceof Permission) {
	throw new PermissionDoesNotExist();
	}

laravel-permission/src/Traits/HasPermissions.php

Lines 274 to 286 in 67e54e2

	$permissionClass = $this->getPermissionClass();
	if (is_string($permission)) {
	$permission = $permissionClass->findByName($permission, $this->getDefaultGuardName());
	}
	if (is_int($permission)) {
	$permission = $permissionClass->findById($permission, $this->getDefaultGuardName());
	}
	if (! $permission instanceof Permission) {
	throw new PermissionDoesNotExist();
	}

[drbyte]

Thanks