Remove `sudo` from shellscripts

Hi, could you please remove sudo from install_cvb and uninstall_cvb shell scripts? This creates a huge incovenience when using containerized environment since containers don’t have sudo by default and usually don’t even need it.

Removing sudo before commands and instead using something like:

if test $? != 0
    echo "[ERROR] Please run this file with sudo"
    exit 1

Would improve the install file usability in different environments.

Removing sudo within shell script and running the whole script with sudo (i.e. sudo ./ still gives the script root permissions so everything can be installed properly if sudo is needed

Thanks @KKulikovskis for sharing this - we will definitely consider that for the next release!