Add missing communities

[petk]

The following communities need to be checked and added accordingly:

• [x] Assembler
• [x] AutoHotKey
• [x] C
• [x] C++
• [x] Clojure
• [x] Coldfusion
• [x] Common Lisp
• [x] Crystal
• [x] D
• [x] Dart
• [x] Delphi
• [x] Elixir
• [x] Elm
• [x] Erlang
• [x] Fortran
• [x] Groovy
• [x] Julia
• [x] Lua
• [x] OCaml
• [x] Perl
• [x] PureScript
• [x] R
• [x] Rust
• [x] Scala
• [x] TypeScript
• [x] .NET
• [x] Android
• [x] Cordova
• [x] Electron
• [x] Frontend Development
• [x] Hybrid Apps
• [x] iOS
• [x] Node.js
• [x] React Native
• [x] Xamarin
• [x] watchOS

[petk]

Added all community data gathered so far to data folder.