Create tech stack docs (techstack.yml and techstack.md)

[stack-file]

Adding tech stack documentation to allow anyone to easily see what is being used in this repo without digging through config files. Two files are being added: techstack.yml and techstack.md. techstack.yml contains data on all the technologies being used in this repo. techstack.md is a visualization of the YML file and displays the tech stack data in a pretty Markdown file.

💡 Protip: techstack.md contains a comment at the top of the file that the following README snippet (with and without the logos) at the top of the file as a comment:

<--- Readme.md Snippet without images Start --->

Tech Stack

Achufam24/Flutter-restful-api-playground is built on the following main stack:

• C lang – Languages
• C++ – Languages
• Dart – Languages
• JavaScript – Languages
• Kotlin – Languages
• Objective-C – Languages
• Swift – Languages
• Android SDK – Frameworks (Full Stack)
• Flutter – Cross-Platform Mobile Development
• CMake – Java Build Tools
• Gradle – Java Build Tools
• Android OS – Operating Systems

Full tech stack here

<--- Readme.md Snippet without images End --->

Get the code:

## Tech Stack
Achufam24/Flutter-restful-api-playground is built on the following main stack:

- [C lang](http://en.wikipedia.org/wiki/C_(programming_language)) – Languages
- [C++](http://www.cplusplus.com/) – Languages
- [Dart](https://www.dartlang.org/) – Languages
- [JavaScript](https://developer.mozilla.org/en-US/docs/Web/JavaScript) – Languages
- [Kotlin](https://kotlinlang.org/) – Languages
- [Objective-C](https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/ProgrammingWithObjectiveC/Introduction/Introduction.html) – Languages
- [Swift](https://developer.apple.com/swift/) – Languages
- [Android SDK](http://developer.android.com) – Frameworks (Full Stack)
- [Flutter](https://flutter.io/) – Cross-Platform Mobile Development
- [CMake](http://www.cmake.org/) – Java Build Tools
- [Gradle](https://www.gradle.org/) – Java Build Tools
- [Android OS](https://www.android.com) – Operating Systems

Full tech stack [here](/techstack.md)

---

<--- Readme.md Snippet with images Start --->

Tech Stack

Achufam24/Flutter-restful-api-playground is built on the following main stack:

• C lang – Languages
• C++ – Languages
• Dart – Languages
• JavaScript – Languages
• Kotlin – Languages
• Objective-C – Languages
• Swift – Languages
• Android SDK – Frameworks (Full Stack)
• Flutter – Cross-Platform Mobile Development
• CMake – Java Build Tools
• Gradle – Java Build Tools
• Android OS – Operating Systems

Full tech stack here

<--- Readme.md Snippet with images End --->

Get the code:

## Tech Stack
Achufam24/Flutter-restful-api-playground is built on the following main stack:

- <img width='25' height='25' src='https://img.stackshare.io/no-img-open-source.png' alt='C lang'/> [C lang](http://en.wikipedia.org/wiki/C_(programming_language)) – Languages
- <img width='25' height='25' src='https://img.stackshare.io/service/1049/cplusplus.png' alt='C++'/> [C++](http://www.cplusplus.com/) – Languages
- <img width='25' height='25' src='https://img.stackshare.io/service/1646/Twitter-02.png' alt='Dart'/> [Dart](https://www.dartlang.org/) – Languages
- <img width='25' height='25' src='https://img.stackshare.io/service/1209/javascript.jpeg' alt='JavaScript'/> [JavaScript](https://developer.mozilla.org/en-US/docs/Web/JavaScript) – Languages
- <img width='25' height='25' src='https://img.stackshare.io/service/3750/pCfEzr6L.png' alt='Kotlin'/> [Kotlin](https://kotlinlang.org/) – Languages
- <img width='25' height='25' src='https://img.stackshare.io/service/1008/xcode.png' alt='Objective-C'/> [Objective-C](https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/ProgrammingWithObjectiveC/Introduction/Introduction.html) – Languages
- <img width='25' height='25' src='https://img.stackshare.io/service/1009/tuHsaI2U.png' alt='Swift'/> [Swift](https://developer.apple.com/swift/) – Languages
- <img width='25' height='25' src='https://img.stackshare.io/service/1010/m8jf0po4imu8t5eemjdd.png' alt='Android SDK'/> [Android SDK](http://developer.android.com) – Frameworks (Full Stack)
- <img width='25' height='25' src='https://img.stackshare.io/service/7180/flutter-mark-square-100.png' alt='Flutter'/> [Flutter](https://flutter.io/) – Cross-Platform Mobile Development
- <img width='25' height='25' src='https://img.stackshare.io/service/2424/0UlUI_y1_400x400.jpg' alt='CMake'/> [CMake](http://www.cmake.org/) – Java Build Tools
- <img width='25' height='25' src='https://img.stackshare.io/service/975/gradlephant-social-black-bg.png' alt='Gradle'/> [Gradle](https://www.gradle.org/) – Java Build Tools
- <img width='25' height='25' src='https://img.stackshare.io/service/9586/ZvmtaSXW_400x400.jpg' alt='Android OS'/> [Android OS](https://www.android.com) – Operating Systems

Full tech stack [here](/techstack.md)