Generates the scaffolding for a new Z-Wave Command

mix zwave.gen.command ThermostatModeSet Thermostat mode

The pattern is

mix zwave.gen.command CommandModuleName CommandClassModule params....

Flags:

• --no-save - will print the generated module out to the console
• --target-dir <path> - will generate the new module at the provided path
• --no_test - if set, will not generate a test file