Add virtualizarr

[scottyhq]

https://github.com/zarr-developers/VirtualiZarr

[github-actions]

👈 Try on Mybinder.org!

[pangeo-bot]

/condalock
Automatically locking new conda environment, building, and testing images...

[scottyhq]

Trouble with numpy>=2 and tensorflow it seems:

│  └─ tensorflow 2.17.0 would require
│     └─ tensorflow-base 2.17.0 cuda120py312h8a249fc_202, which requires
│        ├─ libgrpc >=1.62.2,<1.63.0a0 , which can be installed;
│        └─ numpy >=1.26.4,<2.0a0 , which can be installed;
└─ virtualizarr is not installable because it requires
   └─ numpy >=2.0.0  but there are no viable options
      ├─ numpy [2.0.0|2.0.1|...|2.2.2] conflicts with any installable versions previously