Support for ESP32 without the need of frozen modules

[rafaelaroca]

Some sentences were removed from the the library.

[inmcm]

This commit mistakenly replaces the whole README for the main project. The content here is more appropriate for a README in the reduced version directory. In addition:

• This should also be labeled clearly as a "reduced" feature version. The reduced version README should include rational as to what differs between the the full parser and the reduced version in order to make it fit on certain targets. You can point out this version will run without being on frozen on certain platform (esp32 in your application), but it general this is a smaller codebase for resource constrained devices.
• The primary project README should include a section describing this reduced version of the parser for new visitors to the project

[inmcm]

Thank you for your pull request, but it needs some additional work.

• Please label this as a "reduced" feature version and make the distinction clear there is a feature tradeoff to allow this version to run "un-frozen"
• Fixes to the README docs as posted above
• Please replicate the test suite for the reduced feature version and plumb it into the GitHub Actions CI