CP-8866:Develop for Resource Statistic Feature on XenCenter

Based on the requirements draft and discussed solution, develop the prototype for Resource Statistic Feature part on XenCenter, that is, provide the export to Excel and CSV functionality with required data sets,by accessing the XenCenter cache.
Signed-off-by: Cheng Zhang <cheng.zhang@citrix.com>
This commented-out line runs Excel automatically when the report has been generated. We're not sure why you commented it out though. I think this would be an excellent usability improvement. Did you not like it for some reason?