Add ATmega4809

[doom-fr]

SUMMARY

Add ATmmega4809 device

OPEN QUESTIONS / UNRESOLVED ISSUES

CHECKLIST

• I have read and followed the library conventions.
• For packages, I followed IPC7351C (see details in library conventions).
• I'm the copyright owner of the added content (i.e. the changes are made by myself, not copied/imported from somewhere else).
• I agree to publish all my changes under the CC0 Public Domain License, allowing everyone to use and modify the content without any restrictions.

[dbrgn]

Hi, you have changed the file permissions of many pre-existing files (like the README) from 644 to 755. Can you undo that change before we carry on with the review? (Let me know if you need help with that...)

[doom-fr]

Do not remember this change.
What should be rights ? All files and folders to 644 ? Only files ?

[dbrgn]

Files should probably have 644 as permission. Folders need 755, but they aren't tracked by git, so it doesn't matter.

[doom-fr]

Done !

[doom-fr]

Hi @dbrgn can you check this ?
I need to update this lib today and as I am not comfortable with git, I think it will be easier if you merge this pull request before.

[dbrgn]

I'll try to take a look at this in the coming week, if I find time.