(MINOR) Detailed API review for Ingredient struct

[gpeacock]

Changes in This Pull Request

• Adds missing setters and uses Into<String> parameters
• Updates documentaton
• Adds more unit test coverage

Checklist

• This PR represents a single feature, fix, or change.
• All applicable changes have been documented.
• Any TO DO items (or similar) have been entered as GitHub issues and the link to that issue has been included in a comment.

[codecov-commenter]

Codecov Report

Merging #17 (1193f4c) into main (f3d5f86) will increase coverage by 0.20%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main      #17      +/-   ##
==========================================
+ Coverage   73.69%   73.90%   +0.20%     
==========================================
  Files          61       61              
  Lines       12064    12113      +49     
==========================================
+ Hits         8891     8952      +61     
+ Misses       3173     3161      -12     

Impacted Files	Coverage Δ
sdk/src/ingredient.rs	90.55% <100.00%> (+4.71%)	⬆️
sdk/src/manifest.rs	86.44% <100.00%> (ø)
sdk/src/openssl/ec_signer.rs	90.78% <0.00%> (-1.32%)	⬇️
sdk/src/jumbf/boxes.rs	71.63% <0.00%> (-0.19%)	⬇️

---

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 f3d5f86...1193f4c. Read the comment docs.