Add touch pad support for ESP32 and ESP32-S2/3

[Ellerbach]

Description

Add support for ESP32 and ESP32-S2/S3 touch pad support.

Creating this Darft PR to get early feedback on the implementation. Similar PR for the ESP32 hardware on its way.

Motivation and Context

• Resolves Touch and Pin Deep Sleep Wakeup Doesn't Work on ESP32 Home#1081
• Add full touch pad support

How Has This Been Tested?

Tested on ESP32

Screenshots

Types of changes

• Improvement (non-breaking change that improves a feature, code or algorithm)
• Bug fix (non-breaking change which fixes an issue with code or algorithm)
• New feature (non-breaking change which adds functionality to code)
• Breaking change (fix or feature that would cause existing functionality to change)
• Config and build (change in the configuration and build system, has no impact on code or features)
• Dev Containers (changes related with Dev Containers, has no impact on code or features)
• Dependencies (update dependencies and changes associated, has no impact on code or features)
• Documentation (changes or updates in the documentation, has no impact on code or features)

Checklist

• My code follows the code style of this project (only if there are changes in source code).
• My changes require an update to the documentation (there are changes that require the docs website to be updated).
• I have updated the documentation accordingly (the changes require an update on the docs in this repo).
• I have read the CONTRIBUTING document.
• I have tested everything locally and all new and existing tests passed (only if there are changes in source code).

[josesimoes]

Looks great!! Awesome work with this.
Just fix the declarations and placement of the helper functions (at the bottom of the file) and it's OK to merge.

[josesimoes]

LGTM! Well done. 👍🏻