Improving module loader error messages

[blast-hardcheese]

• Track individual module component extractors
• Accumulate consumed and missed modules
• Roll that stuff up into useful errors

This is a pretty big change over how the loaders previously worked, the ergonomics aren't great currently right now, but tracking in parallel (applicative-style) gives us this reporting capability.

[blast-hardcheese]

Alright. This should resolve the usability regression brought on in #1414, where --module scala-language and --module scala-stdlib were required to be added despite being the only possible options.

[codecov]

Codecov Report

Merging #1501 (3f95d10) into master (e0d182f) will increase coverage by 0.10%.
The diff coverage is 89.10%.

@@            Coverage Diff             @@
##           master    #1501      +/-   ##
==========================================
+ Coverage   84.21%   84.32%   +0.10%     
==========================================
  Files          92       93       +1     
  Lines        5569     5613      +44     
  Branches      153      159       +6     
==========================================
+ Hits         4690     4733      +43     
- Misses        879      880       +1     

Impacted Files	Coverage Δ
modules/microsite/src/main/scala/DocsHelpers.scala	0.00% <0.00%> (ø)
...ev/guardrail/generators/spi/ModuleLoadResult.scala	70.45% <70.45%> (ø)
...dev/guardrail/generators/spi/FrameworkLoader.scala	89.47% <89.47%> (+6.14%)	⬆️
.../dev/guardrail/generators/spi/AbstractLoader.scala	100.00% <100.00%> (ø)
...ardrail/generators/spi/ClientGeneratorLoader.scala	100.00% <100.00%> (+100.00%)	⬆️
...il/generators/spi/CollectionsGeneratorLoader.scala	100.00% <100.00%> (+100.00%)	⬆️
...rail/generators/spi/FrameworkGeneratorLoader.scala	100.00% <100.00%> (+100.00%)	⬆️
.../dev/guardrail/generators/spi/LanguageLoader.scala	100.00% <100.00%> (+100.00%)	⬆️
.../guardrail/generators/spi/ModuleMapperLoader.scala	100.00% <100.00%> (ø)
...drail/generators/spi/ProtocolGeneratorLoader.scala	100.00% <100.00%> (+100.00%)	⬆️
... and 32 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update e0d182f...3f95d10. Read the comment docs.