use matrix rotate, if rotate angle is multiple of 90 degrees

[black-turtle]

Closes #1101

What's Changing

Changing rotate algorithm if angle is multiple of 90 degree. For other rotate angle previous algorithm will be used.

Why Changing

• For rotate(90) or rotate(-90), expected new width and height is width=oldHeight and height=oldWidth. However, existing algorithms is adding an extra pixel to the rotated image.
• This algorithm should be faster than previous one. Time complexity should be O(w*h).

Tasks

• Add tests
• Update Documentation
• Update jimp.d.ts
• Add SemVer Label

Release Notes

Fixes a bug where rotating by 90 degrees introduced extra pixels

[black-turtle]

Hi @hipstersmoothie
Most probably we also need to change the Major version. As rotate behavior is changing. Do you want me to change the Major version in package.json file?

[hipstersmoothie]

How would this be a breaking change? It seems to fix a bug.

[black-turtle]

OK, sounds good. No version change needed then.

[github-actions]

🚀 PR was released in v0.22.7 🚀