Fix color checking from blocking and add logging

[PureWeen]

Description of Change

• Wire up ILogger so we can more easily see where time is being spent if we need to
• Fix all the "ContainsColor" methods to validate on a background thread. In theory tests should timeout if they've been running longer than 15 seconds but the contains color call was blocking the UIThread so it couldn't process the timeout
• Change the image on the shell tab test to use a smaller image so it doesn't have to validate against as many pixels

[jsuarezruiz]

Seems the same changes are required on the Android tests:

D:\a\_work\1\s\src\Core\tests\DeviceTests\Services\ImageSource\FontImageSourceServiceTests.Android.cs(56,4): error CS4014: Because this call is not awaited, execution of the current method continues before the call is completed. Consider applying the 'await' operator to the result of the call. [D:\a\_work\1\s\src\Core\tests\DeviceTests\Core.DeviceTests.csproj::TargetFramework=net9.0-android]
D:\a\_work\1\s\src\Core\tests\DeviceTests\Services\ImageSource\FontImageSourceServiceTests.Android.cs(95,4): error CS4014: Because this call is not awaited, execution of the current method continues before the call is completed. Consider applying the 'await' operator to the result of the call. [D:\a\_work\1\s\src\Core\tests\DeviceTests\Core.DeviceTests.csproj::TargetFramework=net9.0-android]
    8944 Warning(s)
    2 Error(s)

Changes made

[PureWeen]

• merging based on passing tests here https://devdiv.visualstudio.com/DevDiv/_build/results?buildId=10930655&view=results