Installation on Windows does not move DLLs to output folder

[gc435]

Describe the bug
I use vcpkg to install Drogon's prerequisites. Building Drogon with cmake works just fine, but installing with cmake does not copy the required DLLs to the output bin/ directory.

To Reproduce
Steps to reproduce the behavior:

1. cd build
2. cmake -DCMAKE_TOOLCHAIN_FILE=[path to]/vcpkg/scripts/buildsystems/vcpkg.cmake -DCMAKE_INSTALL_PREFIX=[path to]/install ..
3. cmake --build .
4. cmake --install . --config Debug
5. Runing install/bin/drogon_ctl.exe will fail since the required DLLs were not moved to install/bin

Expected behavior
drogon_ctl.exe should display its help page. DLLs listed by dumpbin /dependents install/bin/drogon_ctl.exe should be found.

Desktop (please complete the following information):

• OS: Windows 10

[gc435]

Other tools to help investigate this:

• Dependencies
• Dependency Walker