WIP: ionic chat code sample

[soulfly]

Made/Proposed changes:

• ionic chat code sample

How should this be manually tested?
run ionic chat code sample and test

Does the documentation need an update?
no

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ionic code sample build steps:

Preparation:

1. update npm & node to latest versions (node version must be >6.0)
2. sudo npm install -g ionic cordova
3. ionic start video_chat blank
4. cd video_chat && ionic serve
5. Read about ionic app structure: https://ionicframework.com/docs//intro/tutorial/project-structure

Setup iOS:

1. cordova platform add ios
2. Go to platforms/ios and open *.xcworkspace file
3. Xcode: Build Settings->Swift Language Version: set to Swift3

Code migration:

1. Read about 3rd party-libs https://ionicframework.com/docs/resources/third-party-libs/
2. npm install quickblox --save

[tarekabdallah]

I could not find the ionic sample! Is there any possibility i can get it? @soulfly