AT5-812 set up unit testing for CbfSubarray
Added support for unit testing using MultiDeviceTestContext for the CbfSubarray device.
Updated CbfSubarray to replace the tango.DeviceProxy() instantiation with the new 'CbfDeviceProxy' class Updated CbfSubarray to replace the tango.Group() instantiation with the new 'CbfGroupProxy' class (as per AT5-739) Updated CbfSubarray to replace the attributeProxy() instantiation with the new 'CbfAttributeProxy' class (as per AT5-892) Created the unit test class/methods for unit testing CbfSubarray. Created unit test mocks for necessary connections.
Edited by Taylor Huang