Analytics refactoring

[Dentomologist]

Refactor various parts of Analytics.h/.cpp. The largest changes are to extract the logic for collecting performance samples into a new PerformanceSampleAggregator class, and convert the timing code to use std::chrono .

Other changes:
Remove unused headers
Move a file scope variable into the only function it's used in
Add static_asserts to verify the elements of GameQuirk enum class and GAME_QUIRKS_NAMES array stay in sync
Extract AnalyticsReportBuilder subfunctions from MakeBaseBuilder()
Make assorted variables const
Store the results of SConfig::GetInstance() and g_config.backend_info in local references to eliminate redundant accesses
Reformat some comments
Reformat GameQuirk enum class members to CamelCase
Extract PerformanceSample to new header to avoid circular dependencies with PerformanceSampleAggregator

[Dentomologist]

I've pushed an update to this PR. The biggest changes are extracting the logic for collecting performance samples into a new PerformanceSampleAggregator class, and making the timing code use std::chrono.

I also updated the original PR description with a more complete list of changes (both original and new).

Other changes:
Remove additional unused headers
Reformat another comment
Add static qualifier to ValidateQuirkMatchesName
Reformat GameQuirk enum class members to CamelCase
Extract PerformanceSample to new header to avoid circular dependencies with PerformanceSampleAggregator

[Dentomologist]

I was missing a header include for Common/CommonTypes.h in PerformanceSampleAggregator.h.

[Dentomologist]

I've made the suggested changes.

[JMC47]

@dolphin-emu-bot rebuild

[leoetlino]

This looks good to me, but I'd like to wait for a second approval just to lower the chances of missing an issue and messing up analytics :)

[Dentomologist]

Rebased to master and added name/case changes for members of GameQuirk enum added by #9576.

[dreamsyntax]

Is this still wanted or is it redundant at 4+ years later?