Fix #16 #17 Add outputDataType option for the ArgMax/ArgMin ops

[ibelem]

This PR included test packages of required WebNN EP fixes for #16 #17:

1. https://github.com/microsoft/onnxruntime/pull/21385 Add outputDataType option for the ArgMax/ArgMin ops
2. https://github.com/webmachinelearning/webnn/issues/629 argMax/Min only support scalar axis in TFLite runtime
3. https://github.com/webmachinelearning/webnn/issues/652 ArgMax/Min selectLastIndex is not supported on CoreML
4. Einsum for Segment Anything demo

Other changes:

1. Removed powerPreference: "default" in application code since 353552552 (CL 5716629 will be landed later)

• [x] Need to verify the fix on Chromium build when 5721028: Change argMin/argMax to take scalar axis is merged (verified the fix on 129.0.6614.0)

	SD 1.5	SA
Chrome Canary 128.0.6612.0	Fail	SAM ViT-B Decoder (FP16) Fail
Chrome Canary 128.0.6613.5	Fail	SAM ViT-B Decoder (FP16) Fail
Chrome Dev 128.0.6601.2	Fail	SAM ViT-B Decoder (FP16) Fail

The 5721028 fix is not in Canary 128.0.6613.5, need to wait new Canary build to test.

[ibelem]

The 129.0.6614.0 included the merged CL 5721028 - 128.0.6613.5 / 129.0.6614.0

	SD 1.5	SA
Chrome Canary 128.0.6613.5	Fail	SAM ViT-B Decoder (FP16) Fail
Chrome Canary 129.0.6614.0	PASS	PASS

The SD Turbo (Text Encoder) mode failed to run with WebNN EP of ONNX Runtime Web 1.18 on the new 129.0.6614.0 build, so upgraded the EP to internal build for SD Turbo as well in 41f5e1e (#19). @miaobin @Honry

@fdwr PTAL

[fdwr]

PTAL

👀 Will before I leave today. Thank you Belem.

[fdwr]

Please do not merge this PR yet

Let me know when to merge it. (I moved the text buried in the middle of the text to the top of the description in case Adele tries to merge it).

[ibelem]

@fdwr It can be merged, as i've tested them pass on 129.0.6614.0 later yesterday. Thanks! @Adele101