.csproj files: Created AnyCPU platform configurations for projects that were missing them
Solution: Change AnyCPU solution configuration to compile all projects with AnyCPU (some of them were configured to use x86)
General: Fix compiler warnings
DeviceInfo: Implement ToString, by moving code from example
Add new CLI project for controlling the siren from the command line (useful for automating sirens from external applications, such as email filters)