ICU is now present in the Creators Update in C:\Windows\System32. WinObjC should ship two versions of the binaries that depend on ICU or shim them to allow for transparent replacement with the system version. Consumers should then only get ICU in the app if they ship with a MinTargetPlatform lower than the Creators Update.

This will also change the ICU init path as we right now feed ICU a huge static data blob (from icudat.dll) and the system version uses different data sources.

Additional testing will likely need to be adjusted / verified as the change in binary and data source may lead to ever so slightly different results as we've seen before.