Re: [sr-dev] [kamailio/kamailio] db_postgres: added connection parameters (#2622)

@korayvt - a variant that keeps also the backward compatibility is to go over the list of connections parameters and if `connect_timeout` is missing, then add it like it is done now, when `pg_timeout>0`. On another aspect, I would suggest to go for the style of 'param_name=param_value", it seems that the postgres param names are compatible with sip param names, as I can see at the link you provided: * https://www.postgresql.org/docs/12/libpq-connect.html#LIBPQ-PARAMKEYWORDS So instead of: ``` modparam("db_postgres", "con_param", "name=connect_timeout;value=15") modparam("db_postgres", "con_param", "name=tcp_user_timeout;value=5000") ``` It can be: ``` modparam("db_postgres", "con_param", "connect_timeout=15") modparam("db_postgres", "con_param", "tcp_user_timeout=5000") ``` And the above can also be compacted to: ``` modparam("db_postgres", "con_param", "connect_timeout=15;tcp_user_timeout=5000") ``` It would require some changes in function `postgres_con_param()`.