[FEATURE] update config template

gulp/sgc-config.template.json

@@ -4,8 +4,10 @@
 		"webPath": "web/typo3conf/ext/",
 		"css": "Resources/Public/StyleSheets",
 		"sass": "Resources/Public/Sass",
+		"cssSourceMaps": "Resources/Public/SourceMaps",
 		"javascriptSrc": "Resources/Public/JavaScript",
 		"javascriptDest": "Resources/Public/JavaScript/Dist",
+		"javascriptSourceMaps": "Resources/Public/SourceMaps",
 		"images": "Resources/Public/Images",
 		"sprites": "Resources/Public/Images/Sprites",
 		"svg": "Resources/Public/Images/Svg"
@@ -15,6 +17,7 @@
 		"dest": "web/typo3conf/ext/project_theme/Resources/Private/Templates/Abovethefold/Dist/"
 	},
 	"js": {
+		"compiler": "es6",
 		"libraryPaths": [
 			"./web/typo3conf/ext/project_theme/node_modules"
 		],