Feature: upload progress bar

[ywx217]

Enable progress bar for file & HTTP uploading

[codecov-io]

Codecov Report

Merging #43 into master will decrease coverage by 0.08%.
The diff coverage is 40.74%.

@@            Coverage Diff             @@
##           master      #43      +/-   ##
==========================================
- Coverage   31.21%   31.12%   -0.09%     
==========================================
  Files           8        8              
  Lines         346      363      +17     
==========================================
+ Hits          108      113       +5     
- Misses        232      243      +11     
- Partials        6        7       +1

Impacted Files	Coverage Δ
cli/http.go	3.57% <ø> (ø)	⬆️
cli/cli.go	0% <ø> (ø)	⬆️
photos/add.go	67.01% <0%> (-1.42%)	⬇️
photos/types.go	0% <0%> (ø)	⬆️
cli/upload.go	38.35% <33.33%> (-1.65%)	⬇️
photos/media_items.go	58.06% <63.63%> (-4.44%)	⬇️

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