Ipp version

[gfardell]

Changes

IPP versions need to stay consistent. I've added an ipp_version variable to the recipe to ensure ipp ipp-devel and ipp-include stay consistent, and the the runtime requirements pin the ipp package to that used at build time.

Until a new tag is built with the updated recipe the new install instructions in the recipe should be used.

Testing you performed

Please add any demo scripts to https://github.com/TomographicImaging/CIL-Demos/tree/main/misc
Checked build instructions work on windows and linux.

Checked build and install locally with conda build.

Related issues/links

fixes #1970

Checklist

• I have performed a self-review of my code
• I have added docstrings in line with the guidance in the developer guide
• I have updated the relevant documentation
• I have implemented unit tests that cover any new or modified functionality
• CHANGELOG.md has been updated with any functionality change
• Request review from all relevant developers
• Change pull request label to 'Waiting for review'

Contribution Notes

Please read and adhere to the developer guide and local patterns and conventions.

• The content of this Pull Request (the Contribution) is intentionally submitted for inclusion in CIL (the Work) under the terms and conditions of the Apache-2.0 License
• I confirm that the contribution does not violate any intellectual property rights of third parties