CommandQueue is the future (#3950)

* start of command queue

* cq work

* runs

* cleanup

* outs set

* read is gone

* future buffer work

* command queue is better

* command queue works

* loadops

* delete unneeded

* command queue works

* upd

* fix tests

* use CommandQueue in compile

* delay sync

tinygrad/runtime/ops_disk.py

@@ -45,7 +45,6 @@ class DiskAllocator(Allocator):
       dest[:] = src._buf()
 
 class DiskRunner(JITRunner):
-  skip_allocation = True
   def __init__(self, ast:LazyOp):
     # two ASTs are allowed here.
     assert ast.op is BufferOps.STORE, "output of AST must be store"