ui: Rewrote project setup to wizzard

* QtProjectWizzard handles window managment logic of project setup
* QtProjectWizzardWindow is used in every step and displays QtProjectWizzardContent
* QtProjectWizzardContent is the base class for all differnt content types
* Removed Singleton from ProjectSettings
* ProjectSettings are created by wizzard and QtProjectWizzardContent can access and load
* added project type selection at start of wizzard
* added summary at end of wizzard
* show global search paths in setup and summary
* fixed layout problems after font switch
* fixed scrolling and resizing of QtDirectoryListBox
* separated QtLocationPicker to own class

bin/app/data/gui/setting_window/window.css

@@ -8,6 +8,7 @@ QLineEdit {
 	background-color: rgba(255, 255, 255, 200);
 	border-radius: 10px;
 	border: 1px solid lightgrey;
+	height: 20px;
 	padding-left: 5px;
 	padding-right: 5px;
 }
@@ -27,7 +28,7 @@ QLineEdit:disabled {
 	background-color: rgba(255, 255, 255, 150);
 }
 
-#form QLabel {
+#form #label {
 	font-weight: bold;
 }
 
@@ -52,7 +53,7 @@ QLineEdit:disabled {
 	color: gray;
 	font-size: 15px;
 	height: 20px;
-	margin-left: 10px;
+	margin-left: 5px;
 	width: 28px;
 }