Add download_links file and strengthen filename uniqueness

[heavyscientist]

Add download_links file and strengthen filename uniqueness

Changes Made

Describe the changes you've made in this pull request. What does this PR do?

• Downloads an additional file alongside the map/images. It's a json file (named similarly to its associated map) that contains download links for future use/reference.
• Added more map characteristics (saved config, staging) to the filename convention for downloads

Motivation and Context

Why is this change required? What problem does it solve?

• Allows external tools to:
  • find the maps easier
  • perform arbitrary work on the maps and images

If it fixes an open issue, please link to the issue here.

Type of Change

Please check the options that are relevant:

• Bug fix (non-breaking change that fixes an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• This change requires a documentation update

Testing Performed

Describe the tests you ran to verify your changes:

• tests running in ci
• tested locally and on a remote machine

Screenshots (if appropriate)

Add screenshots to help explain your changes.

naming convention is now $seed_$size_$saved_config_$staging_$mapid_...json

Checklist

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

[github-actions]

Code Coverage Summary

Filename                    Stmts    Miss  Cover    Missing
------------------------  -------  ------  -------  ------------------------------------------------------------------------------
rustmaps.go                     1       0  100.00%
pkg/api/generate.go            98      37  62.24%   65, 72, 92-93, 115, 125-138, 156, 163, 173-174, 183-184, 191-205, 210, 221-226
pkg/api/limits.go              27      10  62.96%   50-51, 60-61, 70-71, 78-79, 84-85
pkg/api/main.go                11       0  100.00%
pkg/api/status.go              41       6  85.37%   90, 99-100, 109-110, 119
pkg/rustmaps/generate.go       29       5  82.76%   25, 29, 35-36, 51
pkg/rustmaps/helpers.go        21       0  100.00%
pkg/rustmaps/import.go         98      13  86.73%   34, 45, 50, 106-107, 159-160, 166-167, 179-180, 187-188
pkg/rustmaps/download.go       80      19  76.25%   38-39, 56-57, 63-64, 97-98, 102, 120-121, 125-126, 134-135, 138-139, 142-143
pkg/rustmaps/config.go         13       3  76.92%   25-27, 34
pkg/rustmaps/getters.go         5       0  100.00%
pkg/rustmaps/main.go           43       4  90.70%   52, 70, 111-112
pkg/rustmaps/setters.go         3       0  100.00%
pkg/rustmaps/auth.go           15       4  73.33%   26-27, 34-35
pkg/types/main.go              38       2  94.74%   106, 114
TOTAL                         523     103  80.31%

Results for commit: 68a1647

Minimum allowed coverage is 80%

♻️ This comment has been updated with latest results

[nvgscientist]

LGTM 💯