Add API to mark input tensors static for cudagraphs (#107154)
Adds API to mark tensor as a static input -
To make this trigger recompiles properly, I'll need to update tensor match checks to also check for this new attribute
Additional concern is memory - the tensors will be kept alive, but this is the current behavior for nn modules and parameters.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/107154
Approved by: https://github.com/eellison
