#444 Configure JDT formatter preferences per project

• Moved JDT formatter settings from Oomph setup to project settings.
• Apply formatter settings to all projects. For metamodel projects, used a limited subset only.
• Reformatted all projects
  • TwinCatWriter: also rewrapped.
  • TwinCatWriter: also fixed a duplicate 'may' word in the comment.
• Updated Eclipse upgrade instructions.
  • Updated and improved/fixed formatter settings part.
  • Improved/fixed error/warning settings part.

I recommend reviewing per commit.

Closes #444 (closed)