Add support to pass clone options that can be repeated multiple times

[ninloot]

This PR addresses issue #824, allowing options to be passed directly without additional processing by the underlying framework.

[ninloot]

It appears that the tests that are failing were failing prior to my change so I don't think my change is a regression.

[codecov-io]

Codecov Report

Merging #836 into master will decrease coverage by 0.11%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #836      +/-   ##
==========================================
- Coverage   94.79%   94.67%   -0.12%     
==========================================
  Files          59       59              
  Lines        9603     9398     -205     
==========================================
- Hits         9103     8898     -205     
  Misses        500      500

Impacted Files	Coverage Δ
git/test/test_repo.py	97.92% <100%> (-0.04%)	⬇️
git/repo/base.py	95.28% <100%> (-0.09%)	⬇️
git/objects/tree.py	59.64% <0%> (-0.93%)	⬇️
git/index/util.py	90.69% <0%> (-0.61%)	⬇️
git/index/typ.py	96.82% <0%> (-0.58%)	⬇️
git/refs/log.py	93.84% <0%> (-0.53%)	⬇️
git/objects/base.py	95.83% <0%> (-0.33%)	⬇️
git/refs/tag.py	96.66% <0%> (-0.31%)	⬇️
git/test/lib/helper.py	91.86% <0%> (-0.28%)	⬇️
git/refs/reference.py	95.74% <0%> (-0.26%)	⬇️
... and 28 more

---

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 1f66e25...8954986. Read the comment docs.

[Byron]

Thanks a lot for your contribution! It's very much appreciated :)!

[Byron]

I am closing this PR as due to me apparently making a mistake while merging things locally, Github is unable to see the branch has actually been merged. Your commit is here 41b9cea

[ninloot]

Thanks for accepting the change. - Steve -

…

On Fri, Jul 5, 2019 at 11:23 PM Sebastian Thiel ***@***.***> wrote: Closed #836 <#836>. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#836?email_source=notifications&email_token=ADNQAORGVVEMOT5UE7ICGLDP6AF4VA5CNFSM4GUHLHR2YY3PNVWWK3TUL52HS4DFWZEXG43VMVCXMZLOORHG65DJMZUWGYLUNFXW5KTDN5WW2ZLOORPWSZGOSLM6HAI#event-2463753089>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ADNQAOT6EX3NAILEKMKQCSTP6AF4VANCNFSM4GUHLHRQ> .