Feature Request

Is your feature request related to a problem? Please describe

There are certain plugins like both Syslog and Flowview that want their character set and table engine to be a specific type.

Describe the solution you'd like

So, at upgrade time, don't overrule that character set or table engine. Only do this for built-in Cacti tables.

Describe alternatives you've considered

At some point, we should make this a setting for the plugin to control. For now, just only do the core cacti tables.