Missing vcpkg package mosquitto

Building the MQTT Project requires an installed mosquitto package to successfully copy mosquittopp.lib. For example, this copy is performed by https://git-ce.rwth-aachen.de/wzl-mq-public/soil/cpp-interface/-/blob/main/projects/windows/VS2022/MQTT/MQTT.vcxproj?ref_type=heads#L144

Manually installing the package with vcpkg install mosquitto will fix the issue, however if required, the package should be included in the installation scripts provided by the repository.