Support nested transforms when resources are passed down through multiple widgets

[agubler]

Type: feature

The following has been addressed in the PR:

• [ ] There is a related issue
• [ ] All code has been formatted with prettier as per the readme code style guidelines
• [ ] Unit or Functional tests are included in the PR

Description:

Resource templates can be passed down through multiple widgets and as such should support multiple transforms required to get to and from the original data shape.

[codesandbox-ci[bot]]

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Sandbox	Source
dojo/dojo-codesandbox-template	Configuration

[codecov[bot]]

Codecov Report

Merging #880 (bba102f) into master (426bc82) will decrease coverage by 0.01%. The diff coverage is 94.44%.

@@            Coverage Diff             @@
##           master     #880      +/-   ##
==========================================
- Coverage   94.46%   94.44%   -0.02%     
==========================================
  Files         127      127              
  Lines        7999     8010      +11     
  Branches     1871     1872       +1     
==========================================
+ Hits         7556     7565       +9     
- Misses        443      445       +2     

Impacted Files	Coverage Δ
src/core/middleware/resources.ts	94.27% <94.44%> (-0.10%)	:arrow_down:
src/core/util.ts	98.00% <0.00%> (-1.00%)	:arrow_down:

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