NVDAObjects/UIA: treat looping selectors as combo boxes without value pattern (#9113)
* UIA objects: import changes.
Remove duplicated 'import time'.
When importing Edge, use relative import to make it Python 3 compliant.
* NVDAObjects/UIA: treat looping selectors without value pattern as combo boxes without value pattern. Re #5231.
Looping selectors are used to select an item from values that wraps around, especially employed in time pickers 9SEttings, Alarms and Clock and others). Becasue they do not expose values, treat them as combo box without value pattern objects. This then allows NVDA to ask UIA to fetch the selected value by querying the selected element.
* Update what's new.