Configurator: Allow to setup plugin based destination

[absorbb]

Problem

In UI version of jitsu is not possible to setup plugin based destination.

Solution

There are two possible approaches:

1. Dynamically adding destination type from plugin to a catalog. So it appears as separate type with icon and name when you want to setup new destination.

2. Constant NPM destination type with base form containing "package" field. Once you provide package it loads plugin and dynamically expands form with fields specific for provided package.