[CRIU] [PATCH 0/5] rpc: restore

[Ruslan Kuprieiev]

Hi!

Added check to cr-restore, so rpc's client, at least, won't have ability 
to restore task root's task.

Renamed CriuDumpReq to CriuOpts, for the sake of readability and to 
avoid coping code for restore mechanism, as CriuDumpReq and 
CriuRestoreResp would have almost the same fields. Also, it would be 
easier to introduce other types of requests.

Added restore request to RPC.

Added test for restore request.

Signed-off-by: Ruslan Kuprieiev <kupruser at gmail.com>