added Waveshare BWR Mode for the 7.5in Display

[JonasB2497]

Description:

Added a new display model which enables the BWR rendering mode for the 7.5in v3 display from waveshare.

Related issue (if applicable): fixes

Pull request in esphome with YAML changes (if applicable): esphome/esphome#7687

Checklist:

• [x] I am merging into next because this is new documentation that has a matching pull-request in esphome as linked above.
  or

• [ ] I am merging into current because this is a fix, change and/or adjustment in the current documentation and is not for a new component or feature.

• [ ] Link added in /index.rst when creating new documents for new components or cookbook.

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[JonasB2497]

I tried to rebase my branch but kind of hit a roadblock. It seems like I have accidentally based my work of of the current branch which I think should have been next instead (that's why there are so many changes). I have my changes separated in a different branch now based on next (waveshare_bwr_next) but can't quite figure out the right commands to rebase the branch in this PR. Do you happen to know the commands I need or can modify this PR to point to my other branch? Or should I just open a new PR and close this one?

[trip5]

Hi Jonas. From Github you should be able to just sync your branch to esphome-docs:current... if you get conflict errors, pull the files out that you updated to hold as a backup then rebase it and check if your files are intact. They should be.

PS I've got a few of these BWR screens. Is it finally in ESPHome Official?

[JonasB2497]

@trip5 syncing deleted my changes but I got it working now by pointing this PR branch to the clean branch I created with git reset --hard and then doing a force push. Rebasing to the newest changes then worked in the github UI again. I have created the necessary changes and created a PR (see the link above) but it is not merged yet.

@jesserockz rebased on the next branch now. Hope this as desired although the checks are failing on files I have not changed