courseLevel增加ALL，并更新course导入

core-api/src/main/java/cn/com/qmth/examcloud/service/core/service/CourseService.java

@@ -48,6 +48,9 @@ public class CourseService {
             	if("1".equalsIgnoreCase(dto.getLevel())){
             		course.setLevel(CourseLevel.GQZ);
             	}
+            	if("2".equalsIgnoreCase(dto.getLevel())){
+            		course.setLevel(CourseLevel.ALL);
+            	}
                 ExcelError error = importCheck(course);
                 if (error == null) {
                 	list.add(course);

core-domain/src/main/java/cn/com/qmth/examcloud/service/core/enums/CourseLevel.java

@@ -4,7 +4,9 @@ public enum CourseLevel {
 
 	ZSB("专升本"),
 
-	GQZ("高起专");
+	GQZ("高起专"),
+	
+	ALL("");
 	
     private String name;