Link Detection Stack Depth FailSafe

[spiffcs]

Summary Follow up to #158

We want to enable a max stack depth so that if the given condition fails to catch any edge cases in #158 stereoscope can still exit safely and report an error.

Tradeoffs

This does leave us open to large stack depth resolutions that are > MaxLinkDepth, but given those cases we can always bump the number to allow for images with large calls to resolveAncestorLinks

[github-actions]

Benchmark Test Results

Benchmark results from the latest changes vs base branch

latest: Pulling from library/ubuntu
goos: linux
goarch: amd64
pkg: github.com/anchore/stereoscope/pkg/file
cpu: Intel(R) Xeon(R) Platinum 8370C CPU @ 2.80GHz
docker: 
           │ ./.tmp/benchmark-3c3d250.txt │
           │            sec/op            │
TarIndex-2                   43.71µ ± ∞ ¹
¹ need >= 6 samples for confidence interval at level 0.95

           │ ./.tmp/benchmark-3c3d250.txt │
           │             B/op             │
TarIndex-2                  5.560Ki ± ∞ ¹
¹ need >= 6 samples for confidence interval at level 0.95

           │ ./.tmp/benchmark-3c3d250.txt │
           │          allocs/op           │
TarIndex-2                    93.00 ± ∞ ¹
¹ need >= 6 samples for confidence interval at level 0.95

pkg: github.com/anchore/stereoscope/test/integration
                                      │ ./.tmp/benchmark-3c3d250.txt │
                                      │            sec/op            │
SimpleImage_GetImage/docker-archive-2                   1.526m ± ∞ ¹
SimpleImage_GetImage/oci-archive-2                      1.525m ± ∞ ¹
SimpleImage_GetImage/oci-dir-2                          725.0µ ± ∞ ¹
geomean                                                 1.191m
¹ need >= 6 samples for confidence interval at level 0.95

                                      │ ./.tmp/benchmark-3c3d250.txt │
                                      │             B/op             │
SimpleImage_GetImage/docker-archive-2                  355.5Ki ± ∞ ¹
SimpleImage_GetImage/oci-archive-2                     632.5Ki ± ∞ ¹
SimpleImage_GetImage/oci-dir-2                         399.8Ki ± ∞ ¹
geomean                                                448.0Ki
¹ need >= 6 samples for confidence interval at level 0.95

                                      │ ./.tmp/benchmark-3c3d250.txt │
                                      │          allocs/op           │
SimpleImage_GetImage/docker-archive-2                   2.771k ± ∞ ¹
SimpleImage_GetImage/oci-archive-2                      1.550k ± ∞ ¹
SimpleImage_GetImage/oci-dir-2                          1.334k ± ∞ ¹
geomean                                                 1.789k
¹ need >= 6 samples for confidence interval at level 0.95

docker: Error response from daemon: Get "http://localhost/v2/": dial tcp [::1]:80: connect: connection refused.
                                                   │ ./.tmp/benchmark-3c3d250.txt │
                                                   │            sec/op            │
SimpleImage_FetchSquashedContents/docker-archive-2                   17.85µ ± ∞ ¹
¹ need >= 6 samples for confidence interval at level 0.95

                                                   │ ./.tmp/benchmark-3c3d250.txt │
                                                   │             B/op             │
SimpleImage_FetchSquashedContents/docker-archive-2                  2.648Ki ± ∞ ¹
¹ need >= 6 samples for confidence interval at level 0.95

                                                   │ ./.tmp/benchmark-3c3d250.txt │
                                                   │          allocs/op           │
SimpleImage_FetchSquashedContents/docker-archive-2                    21.00 ± ∞ ¹
¹ need >= 6 samples for confidence interval at level 0.95