DolphinQt/AdvancedPane: UI improvements.

[AdmiralCurtiss]

• Use fancy tooltips for MMU, Pause on Panic, and Write-back Cache.
• Bold the three above mentioned settings when they are overridden by GameINI.
• The RAM Override and RTC Override checkboxes now correctly check themselves when overridden by GameINI.

Before:

After:

[mbc07]

(out of scope for this PR, just food for thought)

Looking at this more, we could probably move the text descriptions of Emulated CPU Clock, Emulated Memory and Custom RTC options to the custom tooltips at some point. Would solve the longstanding issue of the settings window being too tall without actually moving options from this tab to somewhere else (which wasn't well received on previous attempts)...

[MayImilae]

LGTM

[JosJuice]

Looking at this more, we could probably move the text descriptions of Emulated CPU Clock, Emulated Memory and Custom RTC options to the custom tooltips at some point. Would solve the longstanding issue of the settings window being too tall without actually moving options from this tab to somewhere else (which wasn't well received on previous attempts)...

Users already ignore the warning for Emulated CPU Clock and Emulated Memory too much as it is. Turning the warnings into tooltips would likely make it worse.