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

webrtc-sys/build.rs

@@ -189,6 +189,7 @@ fn main() {
                 //.define("WEBRTC_ENABLE_SYMBOL_EXPORT", None) Not necessary when using WebRTC as a static library
                 .define("NOMINMAX", None);
         }
+        "linux" => {}
         "macos" => {
             println!("cargo:rustc-link-lib=framework=Foundation");
             println!("cargo:rustc-link-lib=framework=AVFoundation");