[NNAPI EP] Enable Slice support

[guoyu-wang]

Description: [NNAPI EP] Enable Slice support

Motivation and Context

• Enabled slice support which is part of SSD models
• Moved the shape inference functions from CPU slice impl to 2 separated helper files, which can be shared without including certain dependencies of CPU EP such as eigen
• Added ends_ field for SliceOp::PrepareForComputeMetadata
• Updated UT

[edgchen1]

const T& clamp(const T& v, const T& lo, const T& hi) {

is this still needed in this file?

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In reply to: 861976198

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Refers to: onnxruntime/core/providers/cpu/tensor/slice.cc:51 in a6155a4. [](commit_id = a6155a4, deletion_comment = False)

[guoyu-wang]

const T& clamp(const T& v, const T& lo, const T& hi) {

is this still needed in this file?

Refers to: onnxruntime/core/providers/cpu/tensor/slice.cc:51 in a6155a4. [](commit_id = a6155a4, deletion_comment = False)

Removed

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In reply to: 862004431

[edgchen1]