[MPS] Move the View ops to a separate file and reduce the number of graphs created (#80491)
This is dependent on the PR to go in first: https://github.com/pytorch/pytorch/pull/79939
Remove the data_ptr from the View Graph key which reduces the number of
graphs created significantly.
Don't wait when copying from MPS to MPS tensors
Pull Request resolved: https://github.com/pytorch/pytorch/pull/80491
Approved by: https://github.com/malfet
