Parent Ingredient JSON

[gpeacock]

• fix bug where ingredient thumbnails were not generated Ingredient fixes and improvements
• an ingredient.json file or folder can now be passed on the command line --parent option.
• if a folder is passed as an ingredient, the tool will look for an ingredient.json fle in that folder.
• fix --parent is no longer relative to the --manifest path

[codecov-commenter]

Codecov Report

Merging #123 (e4608a7) into main (14ba719) will increase coverage by 1.50%. The diff coverage is 90.00%.

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@@            Coverage Diff             @@
##             main     #123      +/-   ##
==========================================
+ Coverage   81.30%   82.80%   +1.50%     
==========================================
  Files           3        3              
  Lines         369      378       +9     
==========================================
+ Hits          300      313      +13     
+ Misses         69       65       -4     

Impacted Files	Coverage Δ
src/main.rs	83.05% <90.00%> (+2.37%)	:arrow_up: