Update shared example to support pip/conda lib

[ethanglaser]

No description provided.

[Copilot]

Pull Request Overview

This PR updates the shared C++ examples to support multiple installation methods for the SVS library, specifically adding support for pip and conda packages alongside the existing tarball release method. The changes simplify the workflow when using pip/conda installations by automatically detecting installed packages and falling back to tarball download when needed.

Key changes:

• Added automatic detection of system/conda/pip SVS installations before downloading tarball
• Updated documentation to include installation and usage instructions for conda and pip methods
• Simplified library linking by using CMake targets instead of manual library finding

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
examples/cpp/shared/README.md	Added documentation for conda and pip installation methods with usage examples, reorganized content into three installation options
examples/cpp/shared/CMakeLists.txt	Implemented automatic SVS package detection with fallback to tarball download, updated library linking to use CMake targets

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