MPC benchmark suit is not linking/missing

Hi Fabian,

Thanks for helping me. You have a very interesting work that helps.
I compiled ndzip with benchmark options and when running I see the following error:
```
$ ./benchmark ../dataset/data.csv -r 5 -a mpc cudpp-compress > benchmark-results.csv
./benchmark: symbol lookup error: ./benchmark: undefined symbol: MPC_float_compressBound
```

Also when running version supports I only see the following. I see MPC is compiled in build/contrib/mpc directory but there are some issues I assume.
$ ./benchmark --version
zlib version 1.2.11
LZ4 version 1.9.2
LZMA version 5.2.4
fpzip version 1.3.0 (December 20, 2019)
GFC GPU FP Compressor v2.2
FPC v1.1
pFPC v1.0
SPDP v1.1

From running ./benchmark --help I see that:
``` Available algorithms: zfp-mt nvcomp-cascaded nvcomp-lz4 lzma lz4 mpc fpzip gfc cudpp-compress pfpc fpc zfp deflate ndzip-mt spdp memcpy-mt ndzip-cuda ndzip memcpy```

have you faced this issue?