Deploy let's encrypt cert in Zimbra

Usage:

        -v Display information about what version                             
        -y Display a brief listing of available commands and options. 
        -d zimbra domain                                              
        -x ISRG X1 path default: $ISRGROOTX1                          
        -k Privkey path default: $PRIVKEY                             
        -C Cert path default: $CERTIFICATE                            
        -z Zimbra comercial key path default: $COMMERCIALKEY          
        -c Cert chain path default: $CHAIN                            
        -u Zimbra user  default: $ZIMBRA_USER                         
        -e Check expiration date: use -e domain                       
        -y Assume the answer "yes" to any prompts