Update hubverse-to-scorable functions to reflect new hubverse target data conventions.

[dylanhmorris]

Closes #165
Closes #137

• Replaces manual point at target data and join specification with accessing oracle output data (where available) via hubData.
• Updates vignette accordingly
• Leaves quantile_table_to_scorable() for now but we can consider deprecating
• Adds tests

[codecov]

Codecov Report

❌ Patch coverage is 80.00000% with 17 lines in your changes missing coverage. Please review.
✅ Project coverage is 73.12%. Comparing base (ef53469) to head (0838ee5).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
R/hubverse_to_scorable.R	67.92%	17 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #186      +/-   ##
==========================================
+ Coverage   72.01%   73.12%   +1.10%     
==========================================
  Files          33       34       +1     
  Lines        1837     1905      +68     
==========================================
+ Hits         1323     1393      +70     
+ Misses        514      512       -2     

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[sbidari]

LGTM! Thanks @dylanhmorris