fossa upload-project command

[zlav]

Description

Add support for a fossa upload-project command that is intended to behave identically to the UI archive scanning feature.

This PR also adds support to assign a project to a release group version from the CLI by supplying --release-group <name> and --release-group-version <version> to the command.

Example UI:

fossa upload-project temp --title new-title --release-group test --release-group-version 2.0
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    FOSSA Reports:
    https://app.fossa.com/projects/archive+testing%2F/refs/%2Ffossa-archive/6b15f78939019bba6ead53cd2d3a4b8d

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Notes

I considered using one flag and splitting on a special character such as --release-group <name>@<version> but I decided to implement two separate flags. The main reason is to avoid unintended issues with splitting the strings on the backend and disallowing a certain special character. The second reason is to reduce confusion for the user who needs to manually add the character. I am favoring enforcing explicit declaration over the expense of the command looking a bit messy.

[codecov]

Codecov Report

Merging #639 (9e96019) into master (38fdbac) will decrease coverage by 0.34%.
The diff coverage is 2.94%.

@@            Coverage Diff             @@
##           master     #639      +/-   ##
==========================================
- Coverage   48.76%   48.41%   -0.35%     
==========================================
  Files         117      117              
  Lines        6398     6446      +48     
==========================================
+ Hits         3120     3121       +1     
- Misses       2970     3016      +46     
- Partials      308      309       +1     

Impacted Files	Coverage Δ
api/fossa/tar.go	10.11% <0.00%> (-1.55%)	⬇️
api/fossa/upload.go	0.00% <0.00%> (ø)
cmd/fossa/flags/flags.go	78.94% <ø> (ø)
cmd/fossa/main.go	0.00% <ø> (ø)
config/file.go	35.48% <0.00%> (-1.19%)	⬇️
config/keys.go	51.11% <0.00%> (-1.17%)	⬇️
api/fossa/locator.go	59.75% <28.57%> (-3.41%)	⬇️

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[elldritch]

LGTM. Some comments. Non-blocking due to urgency - please respond before merging, but don't feel like you need to block on a re-approval before merge.