Replace lodash

[herzog31]

Description

• Replace lodash with mostly native and custom implementations.
• This PR includes changes from #154.

Motivation and Context

• Reduce the artifact size.

How Has This Been Tested?

• Existing unit tests and example have been executed.

Screenshots (if appropriate):

Types of changes

• [x] 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:

• [x] I have signed the Adobe Open Source CLA.
• [x] My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [x] I have read the CONTRIBUTING document.
• [x] I have added tests to cover my changes.
• [x] All new and existing tests passed.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 99.35%. Comparing base (98fd622) to head (2157647).

Additional details and impacted files

@@               Coverage Diff                @@
##           parcel-build     #155      +/-   ##
================================================
+ Coverage         99.22%   99.35%   +0.13%     
================================================
  Files                11       13       +2     
  Lines               257      309      +52     
  Branches             63       77      +14     
================================================
+ Hits                255      307      +52     
  Misses                2        2              

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