CP-9370:Add network type and more error message for resource list report feature

Add network type column to network table
Add memory usage ratio to VM and Host tables
Add detail error message in exporting report

Signed-off-by: Cheng Zhang <cheng.zhang@citrix.com>
You've excluded CDs three lines above, so the vbd type here is always "Disk". So I don't think it adds anything: let's just omit it.