RFR: 8223438: add VirtualizationInformation JFR event

[Baesken, Matthias]

Hello, please review the following change .
It adds  a  simple VirtualizationInformation   event  to JFR .

The addition  to JFR  has been previously  proposed by Erik  when  we discussed the enhancement of hs_error file output  with virtualization related information .

Bug/webrev :

https://bugs.openjdk.java.net/browse/JDK-8223438

http://cr.openjdk.java.net/~mbaesken/webrevs/8223438.1/


Thanks, Matthias