Extend Java Access Bridge Properties for Java Swing apps

[ferpasri]

• Detect if swing widgets are enabled or disabled
• Improve the detection of top-level containers for JFrame panel elements
• Detect top-level actionable widgets by default for Swing apps
• Update Java Swing CI test to detect disabled widgets in SwingSet2

[ferpasri]

You can use SwingSet2 or Rachota Java Swing applications:

• Check that disabled menu items (grey widgets) are detected by TESTAR with enabled:false property, but actions (green dot) are not derived automatically
• Check that TESTAR is no longer deriving a click action in the middle of the menu
• Check that deriving top-level actionable widgets provokes TESTAR to derive actions only in the menu items and not in the widgets behind