Add a tab to show vertex values to the GE debugger.

Should be pretty useful, especially for depth issues.
Add a tab to show matrices as well.
Make all list controls copy by default.

Yay.  Much better than screenshots.
Add select all to all generic list controls.
Typo.
Stop showing z = 1.0 for non through in debugger.

Oops.
Merge pull request #5378 from unknownbrackets/debugger

Add vertex and matrix tabs to the GE debugger