Changed MSVC project PlatformPlugins.vcproj to also copy plugins to platform/plugins/.
Changed MSVC project PlatformPlugins.vcproj to also copy plugins to platform/plugins/.

acmorrow/pion-core,acmorrow/pion-core,acmorrow/pion-core,acmorrow/pion-core,acmorrow/pion-core,acmorrow/pion-core,acmorrow/pion-core