Add PkgConfig fallback for finding system miniupnpc library and an extra include for discord-rpc when using a system install since vcpkg drops the DiscordRPC folder.
Merge branch 'master' into docnappers
Add note in linux build-script about running 'vcpkg install' if some dependencies are missing.
Add vcpkg* to .gitignore for the vcpkg_installed folder in linux.
Add missing include for ctime in DiscordManager.cpp
Add libdiscord-rpc3 as a dependency to the deb package.
Add CMAKE_PREFIX_PATH for vcpkg in linux (not sure if it's generic, but it works for me and is needed to find miniupnpc from vcpkg).
Merge branch 'master' into docnappers