Reading services should check if spawn is `fork` and cuda context already initiated.

[VitalyFedyunin]

🚀 The feature

Instead of runtime we can detect CUDA context fork issues at reading service initiation time and point users to the code mistake.

Motivation, pitch

Lots of users want to do GPU operations inside of DataSet but get confused because of CUDA context behavior at fork.

Alternatives

No response

Additional context

No response