feat: add --details flag to logs command

[SpiffyEight77]

Description

Implements the --details flag for nerdctl logs to display log options(env and labels) as a prefix to each log line.

Test

json-file

nerdctl run -d \
  --name json-file-details \
  --log-driver json-file \
  --log-opt env=foo \
  --log-opt env=os,customer \
  --log-opt labels=production_status,geo \
  --log-opt labels=bar \
  --label geo=GEO \
  --env customer=CUSTOMER \
  --env os=OS \
  --label bar=BAR \
  --env foo=FOO \
  busybox sh -c "echo 'This is a test message'"

nerdctl logs --details json-file-details
bar=BAR,customer=CUSTOMER,os=OS This is a test message

journald

nerdctl run -d \
  --name journald-details \
  --log-driver json-file \
  --log-opt env=foo \
  --log-opt env=os,customer \
  --log-opt labels=production_status,geo \
  --log-opt labels=bar \
  --label geo=GEO \
  --env customer=CUSTOMER \
  --env os=OS \
  --label bar=BAR \
  --env foo=FOO \
  busybox sh -c "echo 'This is a test message'"

nerdctl logs --details journald-details
bar=BAR,customer=CUSTOMER,os=OS This is a test message

[apostasie]

Thanks @SpiffyEight77

You should squash these commits.
One minor comment in there, but otherwise looks fine.

Paging @fahedouch for a formal maintainer review.

[fahedouch]

Thanks