Pass args to kaggle commit, handle / in project

[PrajwalPrashanth]

• [x] Fix '/' in project bug for kaggle commit
• [x] Pass args to kaggle commit. | passed message, files outputs, environment, privacy, project, new_project | Excluded git_commit, git_message, filename
• [x] Handle str and None to retain format for message and environment

[PrajwalPrashanth]

@sidujjain @aakashns Need help testing it out. As mentioned in the description i have covered a bug and potential bugs.

[codecov[bot]]

Codecov Report

Merging #192 into master will increase coverage by 0.44%. The diff coverage is 83.33%.

@@            Coverage Diff             @@
##           master     #192      +/-   ##
==========================================
+ Coverage   99.11%   99.55%   +0.44%     
==========================================
  Files          29       29              
  Lines        1353     1356       +3     
==========================================
+ Hits         1341     1350       +9     
+ Misses         12        6       -6     

Flag	Coverage Δ
#unittests	99.55% <83.33%> (+0.44%)	:arrow_up:

Impacted Files	Coverage Δ
jovian/utils/commit.py	97.15% <0.00%> (ø)
jovian/utils/kaggle.py	100.00% <100.00%> (+42.85%)	:arrow_up:

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[aakashns]

@PrajwalPrashanth can you please add unit test?