Merge sylabs/sif master branch commits up to the point of v1.5.1 tag on v1 branch

[DrDaveD]

This merges in commits from the following sylabs/sif PRs:

• DRY CLI code sylabs/sif#30
• Functional Arguments for CreateContainer sylabs/sif#31
• Bump Module Version to v2 sylabs/sif#32
• Replace Deprecated UUID Package sylabs/sif#33
• Remove GetReadSeeker sylabs/sif#34
• Modify GetData to Return Error sylabs/sif#35
• Reduce Siftool API Surface sylabs/sif#40
• Unit Tests for Internal siftool Package sylabs/sif#41
• Improve Siftool/COBRA Integration sylabs/sif#42
• Improve Documentation sylabs/sif#43
• Enable Dependabot on v1 Branch sylabs/sif#45
• Update golang.org/x/crypto sylabs/sif#49
• Update golang.org/x/crypto sylabs/sif#50
• Remove "Magic" from "header" Command Output sylabs/sif#52
• Add GetHeaderIntegrityReader sylabs/sif#53
• Make Header type Un-Exported sylabs/sif#57
• Zero Descriptor UID/GID (V2)  sylabs/sif#61
• Add Descriptor GetIntegrityReader sylabs/sif#62
• Simplify FileImage Type sylabs/sif#63
• Consistency Fixups sylabs/sif#64
• Descriptor Consolidation sylabs/sif#65
• Functional Options to Create DescriptorInput sylabs/sif#66
• Return Usable FileImage from CreateContainer (v2) sylabs/sif#69

Addresses these hpcng/sif issues:

• Fixes Refactor cmd and pkg's siftool #102
• Fixes Improve options for CreateContainer #103

[DrDaveD]

The CI test is still pending. I'm going to try closing & reopening to kick that.

[DrDaveD]

The golangci-lint check is failing because we are using v1.14.0 and sylabs is using the golangci/golangci-lint:v1.41-alpine docker container, which contains v1.14.1.

[codecov-commenter]

Codecov Report

Merging #106 (7e0f04c) into master (acaf90f) will increase coverage by 3.87%.
The diff coverage is 75.52%.

@@            Coverage Diff             @@
##           master     #106      +/-   ##
==========================================
+ Coverage   65.08%   68.96%   +3.87%     
==========================================
  Files          12       27      +15     
  Lines        1395     1611     +216     
==========================================
+ Hits          908     1111     +203     
- Misses        310      341      +31     
+ Partials      177      159      -18     

Flag	Coverage Δ
unittests	68.96% <75.52%> (+3.87%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
internal/app/siftool/file.go	42.85% <ø> (ø)
pkg/integrity/digest.go	93.10% <ø> (ø)
pkg/sif/fmt.go	69.62% <ø> (-3.60%)	⬇️
pkg/sif/lookup.go	100.00% <ø> (+34.82%)	⬆️
pkg/sif/sif.go	30.58% <38.09%> (+5.58%)	⬆️
pkg/sif/descriptor.go	53.57% <53.57%> (ø)
pkg/sif/create.go	50.52% <55.55%> (-0.19%)	⬇️
pkg/integrity/metadata.go	51.85% <66.66%> (-1.36%)	⬇️
pkg/sif/load.go	50.84% <73.33%> (-2.38%)	⬇️
pkg/integrity/select.go	68.00% <77.41%> (+5.11%)	⬆️
... and 32 more

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[DrDaveD]

Successfully converted to using the golangci/golangci-lint-action github action which accepts a major.minor version instead of major.minor.patch.