applicationId

This change allows users to use macro values defined by Visual Studio in
library names, which might be useful e.g. when selecting different
libraries based on the build configuration.

If the filename of a library contains a special character that would
have a special meaning in the Visual Studio project file, you must use
the ASCII escape sequence for this character instead ("$" becomes "%24",
"%" becomes "%25").

This escaping will happen automatically for non-user-specified library
dependencies, including windows libraries specified in module header
blocks, and the plugin shared code target.

This reverts commit 8bacf8c15c.

This reverts commit 6d38d7eb33.

This reverts commit 809252736b.

This reverts commit a71bda9adb.

When the AvailableModulesList is destroyed, it will wait for the current
module scanning job (running on a background thread) to complete. This
job will try to take the AvailableModulesList::lock when it completes,
so the lock must outlive the background thread.

This ensures that solution files have correctly numbered icons in
Windows Explorer.