Enhancement scss refactoring (#3328)

* Introduce jsbeautifyrc and sass linter for automated unified scss code syntax

* Introduce new z-index scss file to manage different z-index correctly

* Use beautify tool for scss files and sass lint fix all scss files

* Add vscode folder to gitignore

* Add more new files to global gitignore

* Refactor scss files and rework custom styles implementation strategy

* Remove outdated ie7 styles

* Fix typo of facebook input token include

* Fix apache licences for new lint files

* Splitt massive cloudstack.scss into many modular and smaller files

* Refactor scss language files

* Change and move apache licence css file name

Author: M. Weber

.gitignore

@@ -53,6 +53,8 @@ tools/cli/build/
 *.iso
 *.tar.gz
 *.tgz
+*.vscode
+*.css.map
 
 # this ignores _all files starting with '.'. Don't do that!
 #.*
@@ -99,3 +101,4 @@ scripts/.pydevproject
 *.qcow2
 *.raw
 venv
+node_modules

pom.xml

@@ -968,8 +968,7 @@
                             <exclude>tools/ngui/static/bootstrap/*</exclude>
                             <exclude>tools/ngui/static/js/lib/*</exclude>
                             <exclude>tools/transifex/.tx/config</exclude>
-                            <exclude>ui/css/token-input-facebook.css</exclude>
-                            <exclude>ui/css/src/scss/token-input-facebook.scss</exclude>
+                            <exclude>ui/css/src/scss/components/token-input-facebook.scss</exclude>
                             <exclude>ui/l10n/*</exclude>
                             <exclude>ui/lib/flot/jquery.colorhelpers.js</exclude>
                             <exclude>ui/lib/flot/jquery.flot.crosshair.js</exclude>