Wrote some code to add logging when new servers are registered

Affects issues:
- Possibly fixed #2254

Plan/common/src/main/java/com/djrapitops/plan/identification/ServerServerInfo.java

@@ -100,6 +100,7 @@ public class ServerServerInfo extends ServerInfo {
 
     private Server registerNew(ServerUUID serverUUID) {
         Server server = createServerObject(serverUUID);
+        logger.info("Registering a new server in database with UUID " + serverUUID);
         fromDatabase.save(server);
 
         Server stored = fromDatabase.load(serverUUID)

Plan/common/src/main/java/com/djrapitops/plan/identification/storage/ServerDBLoader.java

@@ -59,6 +59,7 @@ public class ServerDBLoader implements ServerLoader {
 
     @Override
     public void save(Server server) {
+        if (server == null) return;
         try {
             dbSystem.getDatabase().executeTransaction(
                     new StoreServerInformationTransaction(server)

Plan/common/src/main/java/com/djrapitops/plan/identification/storage/ServerFileLoader.java

@@ -53,6 +53,7 @@ public class ServerFileLoader extends Config implements ServerLoader {
     }
 
     public void prepare() throws IOException {
+        read();
         try (ConfigReader reader = new ConfigReader(files.getResourceFromJar("DefaultServerInfoFile.yml").asInputStream())) {
             copyMissing(reader.read());
         }