BAEL-8824 Align module names, folder names and artifact id

- Folder name changes

spring-remoting/remoting-http/remoting-http-api/src/main/java/com/baeldung/api/Booking.java

@@ -0,0 +1,17 @@
+package com.baeldung.api;
+
+import java.io.Serializable;
+
+import static java.lang.String.format;
+
+public class Booking implements Serializable {
+    private String bookingCode;
+
+    @Override public String toString() {
+        return format("Ride confirmed: code '%s'.", bookingCode);
+    }
+
+    public Booking(String bookingCode) {
+        this.bookingCode = bookingCode;
+    }
+}

spring-remoting/remoting-http/remoting-http-api/src/main/java/com/baeldung/api/BookingException.java

@@ -0,0 +1,7 @@
+package com.baeldung.api;
+
+public class BookingException extends Exception {
+    public BookingException(String message) {
+        super(message);
+    }
+}

spring-remoting/remoting-http/remoting-http-api/src/main/java/com/baeldung/api/CabBookingService.java

@@ -0,0 +1,5 @@
+package com.baeldung.api;
+
+public interface CabBookingService {
+    Booking bookRide(String pickUpLocation) throws BookingException;
+}