Add SHT2X

[dmaasland]

What does this implement/fix?

Add the SHT2x sensor component.

Types of changes

• Bugfix (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 not work as expected)
• Other

Pull request in esphome-docs with documentation (if applicable): esphome/esphome-docs#3347

Test Environment

• ESP32
• ESP32 IDF
• ESP8266
• RP2040
• BK72xx
• RTL87xx

Example entry for config.yaml:

# Example config.yaml
   sensor:
    - platform: sht2x
       temperature:
         name: "Living Room Temperature"
       humidity:
         name: "Living Room Humidity"

Checklist:

• The code change is tested and works locally.
• Tests have been added to verify that the new code works (under tests/ folder).

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated in esphome-docs.

[kahrendt]

I don't have a sensor to test it with, but I looked through your code and added comments for a few things that I have missed in my previous PRs. Nice work overall!

[dmaasland]

Thanks for your review @kahrendt. I think i've resolved all of them :)

[kahrendt]

Looks good to me! Hopefully a maintainer can take a look soon as well so that it can get merged.

[github-actions]

There hasn't been any activity on this pull request recently. This pull request has been automatically marked as stale because of that and will be closed if no further activity occurs within 7 days. Thank you for your contributions.