init: MVP remote desktop (agent/viewer/common) with H.264 pipeline

viewer/Cargo.toml

@@ -0,0 +1,14 @@
+[package]
+name = "viewer"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+common = { path = "../common" }
+anyhow.workspace = true
+tokio.workspace = true
+quinn.workspace = true
+rustls.workspace = true
+lz4_flex.workspace = true
+openh264 = { version = "0.9.9", features = ["source"] }
+minifb.workspace = true