Adding new Productreference class and htl file

[Satish-Pothabathula]

Description

Related Issue

Motivation and Context

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• I have signed the Adobe Open Source CLA.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes and the overall coverage did not decrease.
• All unit tests pass on CircleCi.
• I ran all tests locally and they pass.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 12 lines in your changes missing coverage. Please review.

Project coverage is 72.62%. Comparing base (34e2ddb) to head (f0f40a0).
Report is 6 commits behind head on dev.

Files with missing lines	Patch %	Lines
...a/core/models/commerce/MyProductReferenceImpl.java	0.00%	12 Missing ⚠️

❗ There is a different number of reports uploaded between BASE (34e2ddb) and HEAD (f0f40a0). Click for more details.

HEAD has 1 upload less than BASE

Flag	BASE (34e2ddb)	HEAD (f0f40a0)
unittests	2	1

Additional details and impacted files

@@             Coverage Diff              @@
##                dev     #334      +/-   ##
============================================
- Coverage     77.84%   72.62%   -5.22%     
  Complexity       72       72              
============================================
  Files             4        5       +1     
  Lines           167      179      +12     
  Branches         31       31              
============================================
  Hits            130      130              
- Misses           20       32      +12     
  Partials         17       17              

Flag	Coverage Δ
unittests	72.62% <0.00%> (-5.22%)	⬇️

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[LSantha]

@Satish-Pothabathula , it looks good to me! I've approved it but let's keep this as a draft PR for now.