LED brightness UI (#520)

* Add nouislider

* Add LEDBrightnessComponent

* Move LEDBrightnessComponent to correct folder

* Add LED brightness page to side menu and device routes

* Add LEDBrightnessComponent to device index file

* Add LEDBrightnessComponent and NouisliderModule to shared module

* Remove ngModelChange from LEDBrightnessComponent until onChange is implemented

* Fix stylelint issue in led brightness component

* Add nouislider files to webpack.config.js

* Add adjusting LED brightness sliders with arrow keys

* Various tweaks to LEDBrightnessComponent

* Fix linting issues in LEDBrightnessComponent

* Allow "::ng-deep" pseudo element in stylelint config

* Add reading LED brightness settings from user configuration

* led-brightness save

* Move slider to its own wrapper component, add debounce for slider change events

* Small fixes to imports and exports of SliderWrapperComponent

* Fix slide component making change event when initial value is set

* Export SliderPips interface

* Fix LED Brightness slider pips

* Add support for value unit in SliderWrapperComponent

* Add a bit of space before LED brightness sliders so the slider handle doesn't go beyond the page in the min position

* Implement onDestroy, fix slider pip values and imports in LEDBrightnessComponent

* Fix imports, implement onDestroy in SliderWrapperComponent

* Move fix for slider pip value style to global styles file

* Reorder stylelint rules

packages/uhk-web/package.json

@@ -69,9 +69,11 @@
     "less-loader": "4.0.5",
     "lodash": "4.17.4",
     "ng2-dragula": "1.5.0",
+    "ng2-nouislider": "^1.7.6",
     "ng2-select2": "1.0.0-beta.10",
     "ngrx-store-freeze": "0.1.9",
     "node-hid": "0.5.4",
+    "nouislider": "^10.1.0",
     "postcss-loader": "1.3.3",
     "postcss-url": "5.1.2",
     "protractor": "5.1.2",