Add a new spk for COPS

Mainly made from copy/paste with sed so let's hope it's all right.

For now Icon is Calibre (no icon for COPS).

I also need to update the default config (config_local.php) for Synology users. I thought of adding some sed lines in installer.sh. Is it the right way ?

Anyway please tell me what's missing / not clean enought and I'll try to fix it.

Thanks in advance (On peut continuer en français si tu veux )