[tracegen] Add service name as a command line option

[kevinearls]

Signed-off-by: Kevin Earls kearls@redhat.com

Which problem is this PR solving?

• This PR adds a command line option to tracegen for service name. This will help support some more complex test scenarios.

Short description of the changes

• "-service" has been added as a command line flag

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (master@043b1ae). Click here to learn what that means.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master    #2080   +/-   ##
=========================================
  Coverage          ?   96.39%           
=========================================
  Files             ?      214           
  Lines             ?    10529           
  Branches          ?        0           
=========================================
  Hits              ?    10149           
  Misses            ?      324           
  Partials          ?       56

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 043b1ae...0abb70e. Read the comment docs.