Add deno-only bootstrap peer implementation. Uses libdatachannel for the RTCDatachannel implementation.

Fix Typescript sourcemap serving
PeerManager: more robust when RTCPeerConnection fails or is not present
Separate source maps so the main files arent bloated

deno/ddln_server.ts

@@ -293,7 +293,7 @@ function connectWebsocket(request: Request) {
 }
 
 async function devServerWatchFiles() {
-    const watcher = Deno.watchFs("../static/");
+    const watcher = Deno.watchFs(["../static/", "../src/"]);
     for await (const event of watcher) {
         if (event.kind === "modify") {
             for (const path of event.paths) {
@@ -320,6 +320,10 @@ function handler(request: Request, info: any): Promise<Response> | Response {
         return new Response("Not serving video", { status: 404 });
     }
 
+    if (url.pathname.includes("/src")) {
+         return serveFile(url.pathname);
+    }
+
     if (url.pathname === "/") {
         return serveFile("/static/index.html")
     }