feat: Custom gst webrtc signaller, runtime GPU driver package install and more (#140)

🔥 🔥

Yes lots of commits because rebasing and all.. thankfully I know Git
just enough to have backups 😅

---------

Co-authored-by: Wanjohi <elviswanjohi47@gmail.com>
Co-authored-by: Kristian Ollikainen <DatCaptainHorse@users.noreply.github.com>
Co-authored-by: Wanjohi <71614375+wanjohiryan@users.noreply.github.com>
Co-authored-by: AquaWolf <3daquawolf@gmail.com>

packages/server/src/nestrisink/mod.rs

@@ -0,0 +1,25 @@
+use std::sync::Arc;
+use gst::glib;
+use gst::subclass::prelude::*;
+use gstrswebrtc::signaller::Signallable;
+use crate::websocket::NestriWebSocket;
+
+mod imp;
+
+glib::wrapper! {
+    pub struct NestriSignaller(ObjectSubclass<imp::Signaller>) @implements Signallable;
+}
+
+impl NestriSignaller {
+    pub fn new(nestri_ws: Arc<NestriWebSocket>, pipeline: Arc<gst::Pipeline>) -> Self {
+        let obj: Self = glib::Object::new();
+        obj.imp().set_nestri_ws(nestri_ws);
+        obj.imp().set_pipeline(pipeline);
+        obj
+    }
+}
+impl Default for NestriSignaller {
+    fn default() -> Self {
+        panic!("Cannot create NestriSignaller without NestriWebSocket");
+    }
+}