fixed a problem with dat and npy files in example dir not being deployed

[degawa]

Regarding issue #705, I fixed ./ci/fpm-deployment.sh by adding commands to copy *.dat and *.npy files.
A diff between the outputs of the scripts before and after the fix shows the *.dat and *.npy files are copied.

~/stdlib$ git switch master
Switched to branch 'master'
Your branch is up to date with 'origin/master'.
~/stdlib$ bash ./ci/fpm-deployment.sh > current.log
~/stdlib$ rm -rf stdlib-fpm/

# fixed fpm-deployment.sh and re-run
~/stdlib$ bash ./ci/fpm-deployment.sh > fixed.log
~/stdlib$ diff current.log fixed.log 
5a6, 7
> example.dat
> example.npy

closes #705

[jvdp1]

LGTM.
I'll merge it.
Thank you @degawa