[crac] RFR: Reset JVM start time and up time on restore (CRaCResetStartTime) [v2]

[Roman Marchenko]

> This change adds an opportunity reset both JVM's start time and uptime on restoring.
> 
> Resetting time may be performed with the new flag "-XX:+CRaCResetStartTime".
> 
> The flag is 'false' by default.

Roman Marchenko has updated the pull request incrementally with one additional commit since the last revision:

  Fixing review comments

-------------

Changes:
  - all: https://git.openjdk.org/crac/pull/130/files
  - new: https://git.openjdk.org/crac/pull/130/files/cd5b63eb..91913cb2

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=crac&pr=130&range=01
 - incr: https://webrevs.openjdk.org/?repo=crac&pr=130&range=00-01

  Stats: 29 lines in 5 files changed: 14 ins; 7 del; 8 mod
  Patch: https://git.openjdk.org/crac/pull/130.diff
  Fetch: git fetch https://git.openjdk.org/crac.git pull/130/head:pull/130

PR: https://git.openjdk.org/crac/pull/130