Split DatabaseBuilder interface separating the setters n getters adding DatabaseBuilder.Settings

So DatabaseBuilder.Settings has all the getters for code looking to read
the configuration that has been set. So DatabaseBuilder now just has the
setter methods.

Use DatabaseBuilder.settings() to access the settings and read the config
that has been set.

ebean-api/src/main/java/io/ebean/DatabaseFactory.java

@@ -75,9 +75,10 @@ public final class DatabaseFactory {
    *
    * }</pre>
    */
-  public static Database create(DatabaseBuilder config) {
+  public static Database create(DatabaseBuilder builder) {
     lock.lock();
     try {
+      var config = builder.settings();
       if (config.getName() == null) {
         throw new PersistenceException("The name is null (it is required)");
       }
@@ -131,7 +132,7 @@ public final class DatabaseFactory {
     }
   }
 
-  private static Database createInternal(DatabaseBuilder config) {
+  private static Database createInternal(DatabaseBuilder.Settings config) {
     return container(config.getContainerConfig()).createServer(config);
   }
 

ebean-api/src/main/java/io/ebean/config/DatabaseConfig.java

@@ -61,7 +61,7 @@ import java.util.function.Function;
  * @author rbygrave
  * @see DatabaseFactory
  */
-public class DatabaseConfig implements DatabaseBuilder {
+public class DatabaseConfig implements DatabaseBuilder.Settings {
 
   /**
    * The Database name.
@@ -548,6 +548,11 @@ public class DatabaseConfig implements DatabaseBuilder {
   public DatabaseConfig() {
   }
 
+  @Override
+  public Settings settings() {
+    return this;
+  }
+
   @Override
   public Clock getClock() {
     return clock;

ebean-api/src/main/java/io/ebean/plugin/SpiServer.java

@@ -16,7 +16,7 @@ public interface SpiServer extends Database {
   /**
    * Return the DatabaseConfig.
    */
-  DatabaseBuilder config();
+  DatabaseBuilder.Settings config();
 
   /**
    * Return the DatabasePlatform for this database.