This diff only affects the new MSI project. It does not impact the live installers in any way. Will create a CR when ready to push.

Diff includes the following:
    -removes duplication of SetupProgress dialog files for new msi's installer.exe. installer.exe project file needed to be updated with all of the new files from Alexey's SetupProgress work
    -removes duplication of SetupComplete dialog files for new msi's installer.exe. installer.exe project file needed to be updated with all of the new files from Yulia's SetupComplete security work
    -removes duplication of JLocale.cpp, JLocale.h
    -removes duplicate of bmp UE files
    -fixed bug with new msi code where all calls for unpack/unzip were popping up msdos dialogs