Add a feature to show P2P relationship when a project node is selected.

• Remove some common P2P targets to avoid clutter. ~10% of total targets, but huge visual real estate because they are long running.
• To compensate for the loss of details, extend highlight to show parent and dependent projects.
• Refactor Highlight mechanic to an single overlay Canvas.
• Removed ContentControl() to speed up loading. Est. ~10% faster.
• Moved some context menu into sub-menu as the menu is starting to get long.
• As part of the refactor, improved hit rate of GoToTimedNode() by reloading all TextBlocks.

Misc.

• Avoid failing to load C++ Analysis when a duplicated message is printed. Not sure why such message is printed, but best not to fail.

After

Before