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Motivation

Support snpe1.59 backend.

Modification

SNPE inference service

1. [Add doc] grpc cross compile
2. [Add source] snpe inference server

Model convert

1. [Add backend] snpe wrapper and onnx2dlc
2. [Update all codebase] support **kwargs
3. [Add doc] codebase test result
4. [Update deploy.py] add --uri option

SDK

1. [Add source] snpe_net.cpp
2. [Add doc] run snpe SDK demo on Android device

CI & tools

1. [Add script] build mmdeploy SDK with SNPE backend. Build x86 version just for test.
2. [Add tools] add tools/onnx2dlc.py

BC-breaking (Optional)

Does the modification introduce changes that break the backward-compatibility of the downstream repositories?
If so, please describe how it breaks the compatibility and how the downstream projects should modify their code to keep compatibility with this PR.

Use cases (Optional)

If this PR introduces a new feature, it is better to list some use cases here, and update the documentation.

Checklist

1. Pre-commit or other linting tools are used to fix the potential lint issues.
2. The modification is covered by complete unit tests. If not, please add more unit tests to ensure the correctness.
3. If the modification has a dependency on downstream projects of a newer version, this PR should be tested with all supported versions of downstream projects.
4. The documentation has been modified accordingly, like docstring or example tutorials.