ROS Noetic Java Generator

[rgarciaruiz]

Debians created from these scripts contain a minimal set of patches that enable generation of Java messages on ROS Noetic.

[trey0]

Hi, Ruben- I'm excited to see your progress with this! I added a suggested edit to the system requirements section of the install instructions, assuming I understand what you're trying to do here.

Some other suggestions for useful additions if you have the time:

• Updated documentation about the new way to build the JAR file. (I don't know which repo that goes in or if there is any old README that can be edited, vs. we have to create instructions from scratch.)
• Possibly a new CI action for GitHub that successfully builds the JAR file. That's always good for peace of mind.

Thanks!

[rgarciaruiz]

Thank you for the doc update!

As for the remaining of the documentation, you can take a look at this PR. Let me know if you have any comments.

As for the CI action, good idea. I may just repurpose the build_msgs_jar.Dockerfile for that.

[trey0]

Looks great! Thank you!