new style device (#2530)

* cpu tests pass

* torch works

* works

* metal works

* fix ops_disk

* metal jit works

* fix openpilot

* llvm and clang work

* fix webgpu

* docs are rly broken

* LRU works on metal

* delete comment

* revert name to ._buf. LRU only on Compiled

* changes

* allocator

* allocator, getting closer

* lru alloc

* LRUAllocator

* all pass

* metal

* cuda

* test examples

* linearizer

* test fixes

* fix custom + clean realize

* fix hip

* skip tests

* fix tests

* fix size=0

* fix MOCKHIP

* fix thneed

* copy better

* simple

* old style metal copy

* fix thneed

* np reshape

* give cuda a device

.gitignore

@@ -45,3 +45,5 @@ coverage.xml
 htmlcov
 outputs_yolov8
 wandb
+model.safetensors
+quickstart.py