Add delay between updates of tracking file

[IvanBond]

Currently RC updates tracking file at each cycle - each minute. OneDrive sometimes can't handle such frequency, so need a configurable delay-parameter.

[IvanBond]

smth like
' update activity file each 10 min
If ActivityTrackingFileUpdateTime <= Now - TimeSerial(0, 10, 0) Then
Call UpdateActivityTrackingFile ' update file which can be used to check that Report Controller is online from external app
ActivityTrackingFileUpdateTime = Now
End If