Cherry-pick PR 1460 to dev-1.x

[hanrui1sensetime]

• sync master

• suppress overlapped tracks

• add CUDA WarpAffine

• export symbols

• fix linkage

• update pose tracker

• clean-up

• fix MSVC build

• fix MSVC build

• add ffmpeg cli command

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Motivation

Cherry-pick #1460 to dev-1.x for Pose-Tracker

Modification

• Same as [Enhancement] Optimize pose tracker #1460
• Fix Android build command in docs

BC-breaking (Optional)

Same as #1460

Use cases (Optional)

Same as #1460

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.

[lvhan028]

@lzhangzz is refactoring PoseTracker, trying to make it an SDK rather than an example.
So let's do the cherry picks after the refactoring is done