* Rename Umbraco.Core namespace to Umbraco.Cms.Core
* Move extension methods in core project to Umbraco.Extensions
* Move extension methods in core project to Umbraco.Extensions
* Rename Umbraco.Examine namespace to Umbraco.Cms.Examine
* Move examine extensions to Umbraco.Extensions namespace
* Reflect changed namespaces in Builder and fix unit tests
* Adjust namespace in Umbraco.ModelsBuilder.Embedded
* Adjust namespace in Umbraco.Persistence.SqlCe
* Adjust namespace in Umbraco.PublishedCache.NuCache
* Align namespaces in Umbraco.Web.BackOffice
* Align namespaces in Umbraco.Web.Common
* Ensure that SqlCeSupport is still enabled after changing the namespace
* Align namespaces in Umbraco.Web.Website
* Align namespaces in Umbraco.Web.UI.NetCore
* Align namespaces in Umbraco.Tests.Common
* Align namespaces in Umbraco.Tests.UnitTests
* Align namespaces in Umbraco.Tests.Integration
* Fix errors caused by changed namespaces
* Fix integration tests
* Undo the Umbraco.Examine.Lucene namespace change
This breaks integration tests on linux, since the namespace wont exists there because it's only used on windows.
* Fix merge
* Fix Merge
* Implemented health check notifier as a hosted service.
Added validation to health check settings.
* Registered health check notifier as a hosted service.
Modified health check nested settings to use concrete classes to align with other configuration models.
* Resolved issues with email sending using development server.
* PR review comments and fixed failing unit test.
* Changed period and delay millisecond and hourly values to TimeSpans.
Changed configuration of first run time for health check notifications to use H:mm format.
* Set up SecureSocketOptions as a locally defined enum.
* Tightened up time format validation to verify input is an actual time (with hours and minutes only) and not a timespan.
* Aligned naming and namespace of health check configuration related classes with other configuration classes.
* Created constants for hex colors used in formatting health check results as HTML.
* Revert "Tightened up time format validation to verify input is an actual time (with hours and minutes only) and not a timespan."
This reverts commit f9bb8a7a825bcb58146879f18b47922e09453e2d.
* Renamed method to be clear validation is of a TimeSpan and not a time.
Co-authored-by: Bjarke Berg <mail@bergmania.dk>
