feat: use vapor to start local http server

[tisfeng]

Close #580

[tisfeng]

This PR initially uses vapor to implement Easydict as a local server, currently supporting two APIs: translate and streamTranslate (Debug).

Usage:

curl -X POST http://localhost:8080/translate \
-H "Content-Type: application/json" \
-d '{
    "text": "good",
    "targetLanguage": "zh-Hans",
    "serviceType": "Apple"
}'

[tisfeng]

streamTranslate API

curl -X POST http://localhost:8080/streamTranslate \
-H "Content-Type: application/json" \
-d '{
    "text": "Then I'\''d take you home, slip off your little black dress and just piledrive you into oblivion.~",
    "targetLanguage": "zh-Hans",
    "serviceType": "CustomOpenAI"
}'

[tisfeng]

AppleDictionary

curl -X POST http://localhost:8080/translate \
-H "Content-Type: application/json" \
-d '{
    "targetLanguage": "zh-Hans",
    "text": "easy",
    "serviceType": "AppleDictionary",
    "appleDictionaryNames": ["牛津英汉汉英词典", "朗文当代高级英语辞典"]
}'

[tisfeng]

I used Cloudflare Tunnel to publish the Easydict local server to the web https://easydict.izual.me , just for fun, don't guarantee 🙂

curl -X POST https://easydict.izual.me/translate \
-H "Content-Type: application/json" \
-d '{
    "targetLanguage": "zh-Hans",
    "text": "good",
    "serviceType": "Apple"
}'

[tisfeng]

Later, I plan to add a few more APIs, such as:

• detect: Identify the language of the text;
• selectedText: Get the currently selected text;
• ocr: Perform OCR on images and return the text in the images.

If anyone is interested in this feature or writing a server in Swift vapor , you can give it a try.

[tisfeng]

Added support for ocr api a8a018f