Mostly:
* fix float8 <-> float32 conversions
* support for `Tensor.constant(.{}, .{ .f8 = 1.0})`
Misc:
* fix small inconsistencies between different versions of sdpa
* better error message for broadcast
* bazelrc: --config=debug
- Add more scatterSlices test cases.
- Replace helpers.mapTensors with zml.meta.map.
- Fix shape handling when a for loop is fully unrolled.
- Allow zml.Tensor.pad to accept i64 for dimension compatibility.
- Enable arrays of tensors inside model structs.
- Split Buffer.asViewOf into asViewOfHostBuffer and asViewOfDeviceBuffer.
