* Add device "presets" to make configuring virtual devices correctly easy.

* Add support for keyboard keys.

internal/config/schema.go

@@ -20,6 +20,7 @@ type DeviceConfig struct {
 	Type            string   `yaml:"type"`
 	DeviceName      string   `yaml:"device_name,omitempty"`
 	Uuid            string   `yaml:"uuid,omitempty"`
+	Preset          string   `yaml:"preset,omitempty"`
 	NumButtons      int      `yaml:"num_buttons,omitempty"`
 	NumAxes         int      `yaml:"num_axes,omitempty"`
 	NumRelativeAxes int      `yaml:"num_rel_axes"`