CameraCaptureUI API Implementation (#4771)
* Initial API code
* Adding working unit tests
* Adding IXP Package
* Fixing pipeline build errors
* Minor fix
* Winrt registration
* Updating Ut's
* Adding Telemetry and publshing binaries
* Adding comments
* reverting accidental edit
* Reverting changes to sln file
* Addressing comments
* nit-picks
* Addressing comments
* Added Mutex
* Relying on RedeemTokenForFileAsync and few nits
* Addressing comments/nits
* Adding property rw lock
* Addressing comments
* Applying suggestions
* Merging with main, updating packageref dependency
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