[patch] source code for https://eclipse.dev/amlen/

[jonquark]

Source code for version of Amlen website at https://eclipse.dev/amlen/ that uses the Eclipse template and build system.

Currently you need to run the build outside the eclipse infrastructure and code the output (in the public directory to the amlen-website repo). I started working on a job to do this automatically in the buildcontainer directory but it doesn't work yet: https://ci.eclipse.org/amlen/job/HouseKeeping_UpdateMainWebsite/1/

But I want to get the website source code in and then work on the jenkins build separately (the website is already live)