Fix import of x86 COM Component in ClickOnce #7324
                
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Fixes #
https://developercommunity.visualstudio.com/t/MSB3179:-Problem-isolating-COM-reference/1571958
Context
Import of x86 COM Component in Clickonce publish fails because msbuild is x64 process in dev17.
Changes Made
Fix code that's read COM registration data from registry to look in the Wow6432 node of HKCR as well.
Testing
Verifed with customer provided repro project that x86 COM component is imported fine after the fix.
Notes