Per form based access permissions

1. +++ b/modules/contact_permissions/contact_permissions.module
   @@ -0,0 +1,61 @@
   +  $entity_types['contact_form']->setAccessClass('\Drupal\contact_permissions\ContactFormAccessControlHandler');
   

   we also need to switch the permissions route provider from EntityPermissionsRouteProviderWithCheck to EntityPermissionsRouteProvider

2. +++ b/modules/contact_permissions/src/ContactPermissions.php
   @@ -0,0 +1,55 @@
   +class ContactPermissions {
   

   This needs to use \Drupal\Core\Entity\BundlePermissionHandlerTrait now so that we get the correct dependencies

This seems like a good feature to replace the Contact Form Permissions module (which appears abandoned and doesn't have a supported release anymore). So I'm excited to see it in progress!

I've created a fork/MR from @naveenvalecha's patch in #18 and updated core version requirements.

I've also attempted to address @larowlan's requests in #22.

+++ b/modules/contact_permissions/src/ContactPermissions.php
@@ -0,0 +1,55 @@
+class ContactPermissions {
This needs to use \Drupal\Core\Entity\BundlePermissionHandlerTrait now so that we get the correct dependencies

I've added this, as I understand it -- but this is my first time handling permissions in Drupal 8+, so I may have missed something.

+++ b/modules/contact_permissions/contact_permissions.module
@@ -0,0 +1,61 @@
+ $entity_types['contact_form']->setAccessClass('\Drupal\contact_permissions\ContactFormAccessControlHandler');
we also need to switch the permissions route provider from EntityPermissionsRouteProviderWithCheck to EntityPermissionsRouteProvide

I'm actually not following this one -- I don't see where EntityPermissionsRouteProviderWithCheck is used. Nor have I been able to figure out the intent of the note with a little research. Happy to make changes if someone could clarify, though.