add Pico-ResTouch-LCD-3.5

[nielsnl68]

What does this implement/fix?

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

Related issue or feature (if applicable): fixes esphome/issues#5324

Pull request in esphome-docs with documentation (if applicable): esphome/esphome-docs#3542

Test Environment

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

Example entry for config.yaml:

# Example config.yaml
display:
#Waveshare PICO 3.5 DISPLAY with ESP32-S3-PICO board.
  - platform: ili9xxx
    model: WSPICOLCD

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.

[probot-esphome]

Hey there @clydebarrow, mind taking a look at this pull request as it has been labeled with an integration (ili9xxx) you are listed as a code owner for? Thanks!
_{^{(message by CodeOwnersMention)}}

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (8b2d76e) 53.68% compared to head (770854b) 53.68%.

Additional details and impacted files

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  Coverage   53.68%   53.68%           
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  Files          50       50           
  Lines        9385     9385           
  Branches     1651     1651           
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  Hits         5038     5038           
  Misses       4048     4048           
  Partials      299      299           

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[jesserockz]

Please add a docs PR for the new config option and model value

[nielsnl68]

Please add a docs PR for the new config option and model value

Done!

[illigtr]

Guys, this issue is NOT resolved! I tested the new driver and it does NOT resolve the issue.