MLBEDSW-9784: Constant propagation pass

- Add support for constant propagation via separate graphir pass set
- Add RewriteFunctions attribute to select traversal direction
- Constant propagation pass traversal direction is forward
- Fixed test/util CreateGraph to not include constant tensors as Graph
  IO
- This change introduces support for TOSA::LOGICAL_LEFT_SHIFT only

Change-Id: I7d63f3c6b11c715fc76ec37f79e85e6a75f6aa87
Signed-off-by: Mauricio Briceno <mauricio.briceno@arm.com>