Xorg input driver (#53)

* add xf86 input driver.

* cleanup.

* rewrite to unix socket PoC.

* add input rebuild.

* lint & docs.

* add input driver struct.

* comments, lint, socket name from config.

* add touch events to webrtc.

* switch to uint32.

* misc update logging & linting,

* fix screen size

* set touchscreen as core pointer.

* add touch to ws control.

* SendCoreEvents.

* extract to own xinput folder.

* add debounce.

* switch pressure to uint8.

* check buffer size.

* send touch events with system init.

pkg/types/message/messages.go

@@ -20,6 +20,7 @@ type SystemInit struct {
 	ScreenSize        ScreenSize             `json:"screen_size"`
 	Sessions          map[string]SessionData `json:"sessions"`
 	Settings          types.Settings         `json:"settings"`
+	TouchEvents       bool                   `json:"touch_events"`
 	ScreencastEnabled bool                   `json:"screencast_enabled"`
 	WebRTC            SystemWebRTC           `json:"webrtc"`
 }
@@ -129,6 +130,12 @@ type ControlKey struct {
 	Keysym uint32 `json:"keysym"`
 }
 
+type ControlTouch struct {
+	TouchId uint32 `json:"touch_id"`
+	*ControlPos
+	Pressure uint8 `json:"pressure"`
+}
+
 /////////////////////////////
 // Screen
 /////////////////////////////