Simplifying ANT APIs and IoT.js Support

[RedCarrottt]

I'm planning to port ANT runtime from node.js to IoT.js.

Since present ANT APIs are too complicated, it is difficult to port the APIs to IoT.js.

Long-term Plan

• [x] Simplify ANT APIs
• [x] Port the simplified ANT APIs to IoT.js
• [x] Implement ANT Companion App for Android
  • Runnable with ANT apps using simplified ANT APIs
• [x] Enable static linking config of IoT.js ANT APIs (PR #174)
• [ ] Packaging the simplified ANT APIs as node.js package (NPM) #77

• It can divide ANT APIs by JS part and native part efficiently. #79

Simplified ANT APIs

• [x] App Runtime API (it was AppCore API)
  • ant.runtime
    • String ant.runtime.setCurrentApp(Function on_initialize, Function on_start, Function on_stop)
      • return value: String result
    • App ant.runtime.getCurrentApp()
  • App
    • String App.getState()
    • Integer App.start()
    • Integer App.stop()
    • Attributes
      • Function App.onInitialize
      • Function App.onStart
      • Function App.onStop
      • Integer App.state
• [x] Stream API
  • ant.stream
    • Pipeline ant.stream.createPipeline()
    • Element ant.stream.createElement()
  • Pipeline
    • void Pipeline.add(Element element)
    • void Pipeline.setState(String state)
  • Element
    • void Element.setProperty(String key, [Number / String] value)
    • void Element.connect(String detailedSignal, Function handler, Array args)
      • void handler(Array args)
• [x] Base Companion API
  • ant.companion
    • void ant.companion.sendMessage(String message)
    • void ant.companion.setOnReceiveMessage(Function handler)
      • void handler(String message)
• [x] Remote UI API (#104)
  • ant.remoteui
    • [x] StreamingView
    • [ ] NotificationView (it should be described in detail)
    • [ ] ConfigView (it should be described in detail)
• [x] Compression Server API
  • ant.compressionServer
    • connect()
    • String downloadModel(String modelId)
      • return value: String modelPath
    • String downloadKernel(String kernelId)
      • return value: String kernelPath