Update Project Categories

Created by: brianking

The project categories at https://ecdtools.eclipse.org/projects/ are currently defined as:

    "ecd.che": "Cloud IDE",
    "ecd.che.che4z": "Extension Marketplace",
    "ecd.codewind": "IDE-Agnostic Library",
    "ecd.dirigible": "Service (IDEAAS)",
    "ecd.emfcloud": "Cloud IDE",
    "ecd.glsp": "Disagram Editors",
    "ecd.jkube": "Cloud IDE",
    "ecd.openvsx": "Extension Marketplace",
    "ecd.sprotty": "Framework",
    "ecd.theia": "Cloud IDE",
    "ecd.cft": "Cloud IDE",
    "ecd.orion": "Extension Marketplace"

Some of these are not correct.

We could go two routes here:

1. Use broad high-level categories as outlined in this chart:

2. Individual categories for each project that are more specific.

More input to come.