ph-enable-cors (#209)

Co-authored-by: Peter Hormanns <peter.hormanns@jalin.de>
Reviewed-on: https://dev.hostsharing.net/hostsharing/hs.hsadmin.ng/pulls/209
Reviewed-by: Peter Hormanns <peter.hormanns@hostsharing.net>

src/main/java/net/hostsharing/hsadminng/HsadminNgApplication.java

@@ -21,6 +21,7 @@ public class HsadminNgApplication {
 
                @Override
                public void addCorsMappings(CorsRegistry registry) {
+            	   // TODO: to enable testing, we should use Spring config
                    String allowedOrigins = System.getenv("ALLOWED_ORIGINS");
                    if (allowedOrigins == null || allowedOrigins.length() <= 1) {
                        allowedOrigins = "*";