Add more timestamps and export them for profiler

Add timestamps when mark host and vm down(T03/T04).
Update the sequence for host down and vm error
Export more time tags for profiler:
    1. Calculate and export  T01,T03,T04 timestamps
    2. Use regex to get time from log instead fixed column
    3. Fix var usage without a '$'

info: merge gerrit ticket 26551 into 26531.

JIRA: DOCTOR-88

Change-Id: I3e6ccba667f470b4a00219f1e9830bb0da3d4ae5
Signed-off-by: Julien <zhang.jun3g@zte.com.cn>