Implement basic desktop app with chromium embeded framework (#2874)

* Remove tauri based desktop app

* Allow bzip-1.0.6 license

* Implement basic cef based desktop app

* Cleanup build setup

* Use wait until and execute cef loop more frequently

* Remove custom do browser work event

* Move WinitApp into its own module

* Cleanup event handling

* Cleanup + Scheudule cef message loop work

* Fix cpu overheating on idle: https://xkcd.com/1172/

* Use tracing crate for logging instead of println

* Rebase to main

---------

Co-authored-by: Dennis Kobert <dennis@kobert.dev>

desktop/src/cef.rs

@@ -0,0 +1,29 @@
+use crate::FrameBuffer;
+use std::time::Instant;
+
+mod context;
+mod input;
+mod internal;
+mod scheme_handler;
+
+pub(crate) use context::{Context, InitError, Initialized, Setup, SetupError};
+
+pub(crate) trait CefEventHandler: Clone {
+	fn window_size(&self) -> WindowSize;
+	fn draw(&self, frame_buffer: FrameBuffer) -> bool;
+	/// Scheudule the main event loop to run the cef event loop after the timeout
+	///  [`_cef_browser_process_handler_t::on_schedule_message_pump_work`] for more documentation.
+	fn schedule_cef_message_loop_work(&self, scheduled_time: Instant);
+}
+
+#[derive(Clone)]
+pub(crate) struct WindowSize {
+	pub(crate) width: usize,
+	pub(crate) height: usize,
+}
+
+impl WindowSize {
+	pub(crate) fn new(width: usize, height: usize) -> Self {
+		Self { width, height }
+	}
+}