feat: support ECMA modules for the 'parser', 'stringifier' and 'syntax' processOptions

[cap-Bernardito]

This PR contains a:

• bugfix
• new feature
• code refactor
• test update
• typo fix
• metadata update

Motivation / Use-Case

Added support ECMA modules for the parser, stringifier and syntax processOptions

Breaking Changes

No

Additional Info

No

[codecov]

Codecov Report

Merging #519 (f7a68f7) into master (55630b8) will decrease coverage by 1.03%.
The diff coverage is 80.00%.

@@            Coverage Diff             @@
##           master     #519      +/-   ##
==========================================
- Coverage   98.05%   97.01%   -1.04%     
==========================================
  Files           5        5              
  Lines         257      268      +11     
  Branches       86       87       +1     
==========================================
+ Hits          252      260       +8     
- Misses          5        8       +3     

Impacted Files	Coverage Δ
src/utils.js	95.53% <78.57%> (-1.50%)	⬇️
src/index.js	100.00% <100.00%> (ø)

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