Add debug callback to frontend and vkbd

Signed-off-by: Owen Smith <owen.smith@citrix.com>
Dont run sdv, as sdv does not support hidclass drivers

Signed-off-by: Owen Smith <owen.smith@citrix.com>
Require "feature-no-console"=1 and set "request-no-console"=1

Setting request-no-console to 1 will stop the backend waiting
for a console to connect before the backend transitions to
connected. Without this, the frontend will time out during
connection (as the backend will never connect) and fail
IRP_MN_START_DEVICE

Signed-off-by: Owen Smith <owen.smith@citrix.com>