Use full version of cld2

[fcyen]

Hi team, I would like to use the full version of the cld2 library which supports 160+ languages. When I tried to build the native library from source and attempt to put it in place of the linux/libcld2.so file, it seems that the wrapper had issue with linking.

Could you provide me with the correct steps to build the C++ files? I noticed the libcld2.so file that I built from source had different symbols compared to the one in this repo as well. Thank you!