feat: server sdk (#47)

* New webrtc build scripts (Still not integrated within the SDK)
* New livekit-api crate (Integrate the server sdk protocol of livekit)
* Moved livekit-utils to livekit-protocol

livekit-protocol/build.rs

@@ -0,0 +1,16 @@
+use std::io::Result;
+
+fn main() -> Result<()> {
+    let mut prost_build = prost_build::Config::new();
+    prost_build.compile_protos(
+        &[
+            "protocol/livekit_egress.proto",
+            "protocol/livekit_rtc.proto",
+            "protocol/livekit_room.proto",
+            "protocol/livekit_webhook.proto",
+            "protocol/livekit_models.proto",
+        ],
+        &["protocol/"],
+    )?;
+    Ok(())
+}