[Doxy] Improve documentation of game windows

[garbear]

Description

This PR adds missing game classes to the Games topic and then improves documentation for the following windows:

• Player viewer - CGameAgent, IAgentList, IActivePortList, CGUIGameControllerProvider, MAX_PORT_COUNT
• Port setup dialog - IPortList
• Controller configuration dialog - IControllerList, IFeatureList, IFeatureButton, IConfigurationWizard

Motivation and context

Skinners are looking for more information about how the game windows work as they update their skins for Nexus/Omega.

How has this been tested?

See above links to rendered documentation (and note, it was built with an old version of doxygen that has some problems like the A links)

What is the effect on users?

• Improved game documentation for developers

Types of change

• Bug fix (non-breaking change which fixes an issue)
• Clean up (non-breaking change which removes non-working, unmaintained functionality)
• Improvement (non-breaking change which improves existing functionality)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that will cause existing functionality to change)
• Cosmetic change (non-breaking change that doesn't touch code)
• Student submission (PR was done for educational purposes and will be treated as such)
• None of the above (please explain below)

[garbear]

jenkins build this please

[garbear]

Jenkins ain't happy, but this only affect comments so in it goes.