[refactor] cmake share libs flag

[Toutou98]

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I would like to request the addition of the -DBUILD_SHARED_LIBS=ON flag to the CMake configuration of this project. From: cmake .. To: cmake .. -DBUILD_SHARED_LIBS=ON

[innerout]

Hello @Toutou98, we already support this flag https://github.com/CARV-ICS-FORTH/parallax/blob/master/CMakeLists.txt#L12 .