Adding C220/C210 special case plus hold/resume function

* Version 1.0.6:
* Date: 12th Sept 2013
* Compatible with Spokes SDK version(s): 2.8.24304.0
* Changed by: Lewis Collins
*   Changes: (thanks Olivier for the feedback)
*     - Added special case to identify devices C220 and C210 to correct
the device capabilities
*       (see UpdateOtherDeviceCapabilities function).
*     - Added HoldCall and ResumeCall functions so softphone can tell
Spokes when these actions
*       have occured in the softphone
*     - Added placeholder code for system suspend/resume events (not
currently exposed through Spokes COM)