Changes to Projects Listing

Created by: brianking

Some requested changes to https://ecdtools.eclipse.org/projects/.

• Add logos for projects using the generic Eclipse Incubation one
• Ensure logos have all the same dimentions, so that there is a consistent look in the listing
• Ensure all logos are transparent. Dirigible has a white background
• Change Incubating flag for projects such as Che, which are more mature
• Move dormant projects such as Tools for Cloud Foundry and Orion down to the end, if possible