Move extra installs from core.pro to core_module.pro

core_module.pro is the one responsible for deployment of the binary so
it makes sense to also let it handle the other files to install.

This leaves core.pro to only handle sub-projects dependencies.

Change-Id: Ibe433eceec7fb0a9f806dfa89dccb0bedeaccc59
Reviewed-by: Andras Becsi <andras.becsi@digia.com>
Deploy external data in QtWebEngineCore.framework for framework builds

There is currently no convenient way to deploy QtWebEngine into an application
bundle on OSX. macdeployqt copies frameworks into a .app bundle's Frameworks
directory but this makes no sense unless all the needed files are also
distributed with the bundle.

This patch moves:
- The ffmpegsumo.so library into Libraries/
- Locale .pak files, qtwebengine_resources.pak and icudtl.dat into Resources/
- QtWebEngineProcess into its own .app bundle, itself into Helpers/

QMAKE_BUNDLE_DATA is used to copy files into the bundle while INSTALLS is
used when installing normally. A LOCALE_LIST is explicitly listed since
QMAKE_BUNDLE_DATA can't handle the * glob to match all source files.

Change-Id: I5c0df57b4b9e93f9cce34a74a6e024bf90d37b5c
Task-number: QTBUG-41611
Reviewed-by: Zeno Albisser <zeno.albisser@digia.com>
Reviewed-by: Andras Becsi <andras.becsi@digia.com>