Add Windows and MacOS Support to Conda-Forge

[Sparks29032]

This library is not installable on windows as there is no noarch build.

• libdiffpy (feedstock)
  • When support is added successfully, there will be a win_64_.yaml file in the .ci_support.

The following have noarch builds, allowing them to be installable on windows and mac, but do not have explicit builds for windows and mac. This means the default installation may not be the most recent on those devices.

• diffpy.utils (feedstock)
  • When successful, there will be win_64_.yaml and osx_64_.yaml files in the .ci_support.
• diffpy.structure (feedstock)
  • When successful, there will be win_64_.yaml and osx_64_.yaml files in the .ci_support.

This should also help clean up on conda forge as the latest version-specific release on forge are diffpy.utils v1.2.2 and diffpy.structure v3.0a2.

If possible, also include arm support (osx_arm64_.yaml) for the following.

• diffpy.utils
• diffpy.structure
• libdiffpy

We may also want to add the following packages to the conda-forge channel.

• diffpy.srreal (github)
• diffpy.srfit (github)