Rename APIC plugins credentials options #701
Description
In APIC plugins, we use the ExcludeDevCredentials and ExcludeProdCredentials options to control which credentials these plugins use to connect to API Center. In the hindsight, the names of these options are confusing, because they're negated, and setting: excludeProdCredentials: true means that prod credentials won't be used. Instead, it would be clear to rename them to useProdCredentials, because then the true value aligns with what the plugin will do.