#111 Build railroad diagrams during the build

• Railroad diagram generator code adapted to be a library.
  • No application framework app/handler/options/exceptions/paths.
  • New main and library methods.
  • Custom logging functionality.
  • Project build updates.
• Added railroad diagram generator Maven mojo.
• Reordered common.asciidoc .classpath entries. They are displayed in the specified order.
• Added missing test launch config for common.asciidoc project.
• Generate railroad diagrams during the build.
• Read railroad diagram configurations with buffered I/O.
• License header check updates.

Closes #111 (closed)