[atenlib] `aten.as_strided` operator

[BowenBao]

aten.as_strided	as_strided(Tensor(a) self, SymInt[] size, SymInt[] stride, SymInt? storage_offset=None) -> Tensor(a)

Briefly talked about this with @justinchuby. This is an interesting operator and it's not handled well by torchscript based exporter, since this function’s behavior depends on the implementation of a tensor’s storage. However, it is unclear if things have become simpler under the context of Core ATen IR (void of mutations).