These steps should tell the UI, that there is a WebComponent which should be used as a custom Input Type in the Edit-UI.

1. Go to App administration and switch to the scope "System"
2. Find the Content Type called ContentType-InputType and create a new item 
   This is where we define custom input types and tell the UI what JS files to load. 
   1. The Type Name is very important, it should always start with the data type (like string, boolean, custom or other) followed by a hyphen and the rest of your name. Some examples: "string-color-picker" or "empty-just-show-message"
   2. The Label and Description are for the UI where you choose the input-type
   3. Angular Form Configuration - Assets are critical for the UI to know what to load.  TODO