[AC-358] Server changes for self host subscription page changes (#2826)

* [AC-358] Add constant for grace period length

* [AC-358] Add SubscriptionExpiration to OrganizationLicense.cs and increment Current_License_File_Version

* [AC-358] Update org subscription response model

- Add new SelfHostSubscriptionExpiration field that does not include a grace period
- Add optional License argument to constructor for self host responses
- Use the License, if available, to populate the expiration/subscription expiration fields
- Maintain backwards compatability by falling back to organization expiration date

* [AC-358] Read organization license file for self hosted subscription response

* [AC-358] Decrement current license file version and add comment documenting why

* [AC-358] Clarify name for new expiration without grace period field

test/Api.Test/Controllers/OrganizationsControllerTests.cs

@@ -40,6 +40,7 @@ public class OrganizationsControllerTests : IDisposable
     private readonly IUpdateOrganizationLicenseCommand _updateOrganizationLicenseCommand;
     private readonly IOrganizationDomainRepository _organizationDomainRepository;
     private readonly IFeatureService _featureService;
+    private readonly ILicensingService _licensingService;
 
     private readonly OrganizationsController _sut;
 
@@ -63,12 +64,13 @@ public class OrganizationsControllerTests : IDisposable
         _createOrganizationApiKeyCommand = Substitute.For<ICreateOrganizationApiKeyCommand>();
         _updateOrganizationLicenseCommand = Substitute.For<IUpdateOrganizationLicenseCommand>();
         _featureService = Substitute.For<IFeatureService>();
+        _licensingService = Substitute.For<ILicensingService>();
 
         _sut = new OrganizationsController(_organizationRepository, _organizationUserRepository,
             _policyRepository, _providerRepository, _organizationService, _userService, _paymentService, _currentContext,
             _ssoConfigRepository, _ssoConfigService, _getOrganizationApiKeyQuery, _rotateOrganizationApiKeyCommand,
             _createOrganizationApiKeyCommand, _organizationApiKeyRepository, _updateOrganizationLicenseCommand,
-            _cloudGetOrganizationLicenseQuery, _featureService, _globalSettings);
+            _cloudGetOrganizationLicenseQuery, _featureService, _globalSettings, _licensingService);
     }
 
     public void Dispose()