bug(windows): add a argument to "handle check" events for "manual" or "automatic"

[rc-swag]

HandleCheck always creates TRemoteUpdateCheck with force argument set to true. Which means it does not perform a check to see if it has been a week since the last test.
An argument should be added to HandleCheck which will force the check if true otherwise first check the last update time was greater than 7 days ago.

The timer in Keyman engine keyman\app\windows\src\engine\keyman\UfrmKeyman7Main.pas should not really have been calling HandleCheck on a 5 minute timer.

Note this will also help prepare for a new feature to track what type of check update request is being made for statistical purposes. #15421.

Background History:
The HandleCheck event for the state machine was designed to be a check now. In the first iteration it was going to be called by a scheduler of some type like Windows Scheduler.
The HandleKmShell would always also take the opportunity to check for an update if it had been less than 7 days. Due to some tweaking of the delivery of the Windows Update, HandleCheck was changed to be called on a interal timer in Keyman.exe every 5 min. HandleKmShell is not appropriate here as that event should only be called on a start or kmshell execution. Adding a argument to HandleCheck with the type of update will be the way forward.