TIMOB-12223 - Implemented WebView

Test in `test/apps/native/tibbtest/webview_test.js`

Properties:
- setData() - _not working_
- setDisableBounce() - _not working_
- setEnableZoomControls() - _not working_
- setLoading() - _not working_
- setPluginState() - _not working_
- setScrollsToTop() - _not working_
- setShowScrollbars() - _not working_
- setWillHandleTouches() - _not working_
- setHideLoadIndicator()
- setHtml()
- setScalesPageToFit()
- setUrl()
- setUserAgent()

Methods:
- evalJS()

Events
- beforeload
- load
- error - _not working_