UnityTouchDeviceManager now respects its IsEnabled property

[marek-stoj]

Overview

UnityTouchDeviceManager, as other data providers (eg. XRSDKDeviceManager), should not Update itself if its IsEnabled property is false.

Changes

• Fixes: # .

Verification

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[keveleigh]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 2 pipeline(s).

[keveleigh]

Thanks for the fix!