Fix dist.

Add ui/cli/tshark-tap.h and packaging/nsis/windeployqt-to-nsis.ps1.

Change-Id: I00465aed3f33595ad50be0ba5d0ed0eae54e1137
Reviewed-on: https://code.wireshark.org/review/3268
Reviewed-by: Gerald Combs <gerald@wireshark.org>