swift-package: Add ORTTensorElementDataTypeBool support

[Bingcheng Hu (bingcheng1998)]

Expose the ONNX BOOL tensor element type through the Objective-C API so that models requiring tensor(bool) inputs can be used. The new enum value is appended at the end to keep existing raw values stable.

Description

This adds ORTTensorElementDataTypeBool to the Objective-C API and maps it to ONNX_TENSOR_ELEMENT_DATA_TYPE_BOOL in ort_enums.mm, with sizeof(bool) as the element size. A unit test testInitBoolTensorOk is added to verify that a bool tensor can be created and read back correctly.

The objectivec/ directory in this repo is the source of truth that onnxruntime-swift-package-manager copies from (see PR #41), so the change needs to land here first.

Motivation and Context

Several ONNX models require a tensor(bool) input that the Objective-C/Swift bindings currently cannot construct. onnxruntime-swift-package-manager#31 reports a model using a bool mask for pixel attention that fails because ORTTensorElementDataType has no bool value.

Supporting the type at the source (objectivec/) lets the SPM package pick it up in its next sync and unblocks those models. The new enum value is appended at the end so existing raw values stay stable.

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[Copilot]

Pull request overview

Exposes BOOL tensors through the Objective-C API, enabling models with tensor(bool) inputs.

Changes:

• Adds ORTTensorElementDataTypeBool.
• Maps it to the ONNX BOOL type and storage size.
• Adds creation, metadata, and round-trip data coverage.

No actionable issues identified.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
objectivec/include/ort_enums.h	Adds the public BOOL enum value.
objectivec/ort_enums.mm	Adds BOOL type and size mapping.
objectivec/test/ort_value_test.mm	Tests BOOL tensor creation and readback.

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[Bingcheng Hu (bingcheng1998)]

@microsoft-github-policy-service agree

[Bingcheng Hu (bingcheng1998)]

Edward Chen (@edgchen1) This is the upstream change corresponding to onnxruntime-swift-package-manager#31 and PR #41, which you asked to be opened in this repo. Adding ORTTensorElementDataTypeBool so bool mask inputs (e.g. pixel attention models) can be constructed from the ObjC/Swift API.