Add support for HEIF based images

[ynse01]

Prerequisites

• I have written a descriptive pull-request title
• I have verified that there are no overlapping pull-requests open
• I have verified that I am following the existing coding patterns and practice as demonstrated in the repository. These follow strict Stylecop rules 👮.
• I have provided test coverage for my change (where applicable)

Description

This PR is an attempt to start with #1320

Implemented decoding and encoding of images based on a HEIF (ISO/IEC 23008-12:2022) container. These include (amongst others): HEIC, HIF and AVIF.

Please note this PR does NOT add any new compression algorithm to ImageSharp. For now it will take a JPEG thumbnail as its pixel source.
Needless to say, much more work is needed after this PR to reach the goal. I'm try to help there also.

Please do let me know any comments, also on whether to support the HEIF file format in the first place.

[ynse01]

@JimBobSquarePants Since a few days the Test runs on (at least the Linux) CI servers fails on a missing libgdiplus library file. Is this an issue specific to this branch?
Asking as I didn't change any of the related code.

[stefannikolei]

@JimBobSquarePants Since a few days the Test runs on (at least the Linux) CI servers fails on a missing libgdiplus library file. Is this an issue specific to this branch?

Asking as I didn't change any of the related code.

This is because of usage of Ubuntu:latest. The base image changed and libgdiplus is missing.

I have a fix added to my open pr

This commit fixes the problem 0a7cf55

[JimBobSquarePants]

@JimBobSquarePants Since a few days the Test runs on (at least the Linux) CI servers fails on a missing libgdiplus library file. Is this an issue specific to this branch?
Asking as I didn't change any of the related code.

This is because of usage of Ubuntu:latest. The base image changed and libgdiplus is missing.

I have a fix added to my open pr

This commit fixes the problem 0a7cf55

Thanks guys, yeah spotted this, just taking a few days break but will get fixes merged soon. Happy New Year!

[stefannikolei]

Enjoy your deserved break