Merge pull request #13 from Cognigy/feature/deepl

added deepl extension

extensions/deepl/README.md

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+# DeepL
+
+This Extension provides DeepL functions to include in your Cognigy.AI conversation.
+
+**Connection:**
+In order to use the nodes below, one needs to sign up for the [Deepl Pro Subscription](https://www.deepl.com/de/pro/). Afterward, the **API KEy** is visible in the user's account section.
+
+- API Key
+  - key: key
+  - value: DeepL Pro API Key
+
+
+## Node: Translate Text
+
+This node translates text into a selected language [based on the API](https://www.deepl.com/docs-api/translating-text/example/). It stores the result in the context or input object:
+
+```json
+{ 
+	"translations": [{
+		"detected_source_language":"EN",
+		"text":"Der Tisch ist grün. Der Stuhl ist schwarz."
+	}]
+ }
+```
+
+### Example:
+
+The original text is written in **German** and the target language is set to **Spanish**:
+
+![](./docs/example.png)

extensions/deepl/package.json

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+{
+  "name": "deepl",
+  "version": "4.0.0",
+  "description": "Integrates with DeepL",
+  "main": "build/module.js",
+  "scripts": {
+    "transpile": "tsc -p .",
+    "zip": "tar cfz deepl.tar.gz build/* package.json package-lock.json README.md icon.png",
+    "build": "npm run transpile && npm run lint && npm run zip",
+    "lint": "tslint -c tslint.json src/**/*.ts"
+  },
+  "keywords": [
+    "DeepL",
+    "Translation"
+  ],
+  "author": "Cognigy GmbH",
+  "license": "MIT",
+  "dependencies": {
+    "@cognigy/extension-tools": "^0.10.0",
+    "axios": "^0.20.0",
+    "tslint": "^6.1.2"
+  },
+  "devDependencies": {
+    "@types/node": "^13.13.15",
+    "typescript": "^3.8.3"
+  }
+}

extensions/deepl/src/connections/deeplConnection.ts

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+import { IConnectionSchema } from "@cognigy/extension-tools";
+
+export const deeplConnection: IConnectionSchema = {
+	type: "deepl",
+	label: "DeepL API Key",
+	fields: [
+		{ fieldName: "key" },
+	]
+};

extensions/deepl/src/module.ts

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+import { createExtension } from "@cognigy/extension-tools";
+
+import { deeplConnection } from "./connections/deeplConnection";
+import { translateTextNode } from "./nodes/translateText";
+
+
+export default createExtension({
+	nodes: [
+		translateTextNode
+	],
+
+	connections: [
+		deeplConnection
+	]
+});