[dxdiag] content enhancements

This improves the content of the tabs that have missing content. Just note that only the English language file has been changed for now.

CHANGELOG
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• Some LTEXT controls have been replaced with EDITTEXT controls. This allows the user to copy certain pieces of information without having to: first select "Save All Information", saving the file to a location, open the file in a program like notepad, and then selecting the content.
• Replace the -1 with IDC_STATIC to make the resource files a bit easier to read.
• In the system tab, the name of the operating system is now properly shown.
• In many of the tabs, controls have been added to them to make them a bit more complete. The controls are either disabled or nonfunctional, mostly because we still don't have full DirectX support yet.

And yes, I know that there are still redraw problems (CORE-8734) in this program at the time of writing, but I was able to show these screenshots using a workaround solution of first clicking on the proper tab first, and then dragging the entire window off screen, then on screen again, which somehow drew the contents of the tabs.