[Feature Request] Failing gracefully from out-of-memory.

Nobody has claimed this yet.

### Describe the feature request

When I get an out-of-memory error, my program crashes.

This can be, for example, if too many sessions are made and not disposed of. Or just because things can't fit in the RAM/VRAM.

Is there a way to fail gracefully from these out-of-memory scenarios?

What should happen: The model tries to create a session from the 3GB model file. It can't get it all on the VRAM so it stops and clears up the model.

### Describe scenario use case

A UI is loading a large model onto the GPU but it doesn't fit. So the program fails gracefully and doesn't crash with out-of-memory.

BTW I am using Unity so that means that if a program is stopped half way through and the sessions are not disposed of they can hang around in memory until you press play again on the editor, then it can crash Unity.

No files, tests, or entry points are named. Start by reproducing session creation with a model that does not fit in VRAM from the Unity scenario, then inspect how out-of-memory errors and session disposal are handled. Done means the failed load is reported without crashing and allocated model resources are cleared.

Written by the indexing model from the issue text.