Initial web agent support and Turtle Graphic example (#529)

Initial Turtle Graphic example
Initial web agent support
- Refactor and generalize process shim to support RPC on different
"transport" or channels, add support for shared channels
- Add support to dynamically add and remove agents at runtime.
- Add new target "webAgent" in browser service worker's websocket
message which will be relay to the web context via content script
- interface remote call messages will pass thru `dispatcher` -> [node
IPC] `browser agent process` -> [websocket]`extension service worker` ->
[chrome.runtime] `extension content script` -> [window.postmessage] `web
page` and vice versa for message back.

ts/packages/actionSchema/src/parser.ts

@@ -304,7 +304,7 @@ class ActionParser {
         const parser = new ActionParser();
         const definition = parser.parseSchema(sourceFile, typeName);
         if (definition === undefined) {
-            throw new Error(`Type ${typeName} not found`);
+            throw new Error(`Type '${typeName}' not found`);
         }
         const result = createActionSchemaFile(
             schemaName,
@@ -330,7 +330,7 @@ class ActionParser {
         for (const pending of this.pendingReferences) {
             const resolvedType = this.typeMap.get(pending.name);
             if (resolvedType === undefined) {
-                throw new Error(`Type ${pending.name} not found`);
+                throw new Error(`Type '${pending.name}' not found`);
             }
             pending.definition = resolvedType;
         }

ts/packages/agentRpc/LICENSE

@@ -0,0 +1,21 @@
+    MIT License
+
+    Copyright (c) Microsoft Corporation.
+
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice shall be included in all
+    copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+    SOFTWARE

ts/packages/agentRpc/README.md

@@ -0,0 +1,11 @@
+# Agent Remoting
+
+This package contains code to support remoting Agent SDK interfaces via an abstract RpcChannel interface.
+
+## Trademarks
+
+This project may contain trademarks or logos for projects, products, or services. Authorized use of Microsoft
+trademarks or logos is subject to and must follow
+[Microsoft's Trademark & Brand Guidelines](https://www.microsoft.com/en-us/legal/intellectualproperty/trademarks/usage/general).
+Use of Microsoft trademarks or logos in modified versions of this project must not cause confusion or imply Microsoft sponsorship.
+Any use of third-party trademarks or logos are subject to those third-party's policies.

ts/packages/agentRpc/package.json

@@ -0,0 +1,39 @@
+{
+  "name": "agent-rpc",
+  "version": "0.0.1",
+  "description": "Remoting library for the TypeAgent SDK",
+  "homepage": "https://github.com/microsoft/TypeAgent#readme",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/microsoft/TypeAgent.git",
+    "directory": "ts/packages/agentRpc"
+  },
+  "license": "MIT",
+  "author": "Microsoft",
+  "type": "module",
+  "exports": {
+    "./server": "./dist/server.js",
+    "./client": "./dist/client.js"
+  },
+  "types": "./dist/index.d.ts",
+  "scripts": {
+    "build": "npm run tsc",
+    "clean": "rimraf --glob dist *.tsbuildinfo *.done.build.log",
+    "prettier": "prettier --check . --ignore-path ../../.prettierignore",
+    "prettier:fix": "prettier --write . --ignore-path ../../.prettierignore",
+    "tsc": "tsc -b"
+  },
+  "dependencies": {
+    "@typeagent/agent-sdk": "workspace:*",
+    "common-utils": "workspace:*",
+    "debug": "^4.3.4"
+  },
+  "devDependencies": {
+    "@types/debug": "^4.1.10",
+    "@types/jest": "^29.5.7",
+    "jest": "^29.7.0",
+    "prettier": "^3.2.5",
+    "rimraf": "^5.0.5",
+    "typescript": "^5.4.2"
+  }
+}