The Null Annotations jar: org.eclipse.jdt.annotation does not have a module-info.java

[agentgt]

The Eclipse nullable annotations jar does not have a module-info.java which makes using jlink extremely difficult.

The simplest solution is to use something like moditect or a multi release jar.

Without this I will most likely have to switch to JSpecify jars sooner as they have a module-info.java.

@stephan-herrmann I'm happy to try to put in a PR however I'm not as familiar with the tycho-compiler and not sure what its compatibility is with something like moditect.

[agentgt]

Feel free to just copy what I did in the PR. It uses moditect to do it.