[DOC] Exact documentation to compile the cagra using cpp

[kjhongCerestechs]

Report needed documentation

Needed documentation: Exact documentation to compile the cagra using cpp or to download docker image that includes the tools to compile the cagra.

[lowener]

Have you had a look at the current documentation for the installation of cuvs? https://docs.rapids.ai/api/cuvs/nightly/build/#build-from-source It contains the commands needed to compile CAGRA in C++:

1. Create a conda environment with the needed dependencies
2. Compile the library using ./build.sh libcuvs
3. You can also optionally compile the examples using ./build.sh examples