Add scran nomalisation into scanpy

[le-ander]

What kind of feature would you like to request?

New analysis tool: A simple analysis tool you have been using and are missing in sc.tools?

Please describe your wishes

As previously attempted (#823), it would be amazing to have scran normalisation implemented in scanpy. It's one of the best practices and for many simple analysis workflows, it might even be the only step currently requiring to switch to R.

[Marwansha]

fyi there is scranpy available i have been using it for a while

[flying-sheep]

Do you mean scranPY?