[SM-923] Add project service accounts access policies management endpoints (#3993)

* Add new models

* Update repositories

* Add new authz handler

* Add new query

* Add new command

* Add authz, command, and query to DI

* Add new endpoint to controller

* Add query unit tests

* Add api unit tests

* Add api integration tests

src/Core/SecretsManager/AuthorizationRequirements/ProjectServiceAccountsAccessPoliciesOperationRequirement.cs

@@ -0,0 +1,14 @@
+#nullable enable
+using Microsoft.AspNetCore.Authorization.Infrastructure;
+
+namespace Bit.Core.SecretsManager.AuthorizationRequirements;
+
+public class ProjectServiceAccountsAccessPoliciesOperationRequirement : OperationAuthorizationRequirement
+{
+
+}
+
+public static class ProjectServiceAccountsAccessPoliciesOperations
+{
+    public static readonly ProjectServiceAccountsAccessPoliciesOperationRequirement Updates = new() { Name = nameof(Updates) };
+}