#2349 Introduce a default stub implementation of IEntityMasterUrlProv…

…ider to correct the IoC configuration

4ae670e introduced IUrlGenerator but bound it only in IBasicWebApplicationServerModule,
which caused some other IoC modules to break (TgTestApplicationServerModule in particular, which
is used by DataPopulationConfig in PopulateDb).

platform-pojo-bl/src/main/java/ua/com/fielden/platform/web/interfaces/IEntityMasterUrlProvider.java

@@ -1,15 +1,20 @@
 package ua.com.fielden.platform.web.interfaces;
 
+import com.google.inject.ImplementedBy;
 import ua.com.fielden.platform.entity.AbstractEntity;
 
 import java.util.Optional;
 
 /**
  * A contract to generate an entity master URI for a specific entity.
+ * <p>
+ * An implementation should be bound in an IoC module.
+ * The default implementation doesn't provide meaningful results.
  *
  * @author TG Team
  */
 @FunctionalInterface
+@ImplementedBy(StubEntityMasterUrlProvider.class)
 public interface IEntityMasterUrlProvider {
 
     static String PARTIAL_URL_PATTERN = "#/master/%s/%s";

platform-pojo-bl/src/main/java/ua/com/fielden/platform/web/interfaces/StubEntityMasterUrlProvider.java

@@ -0,0 +1,14 @@
+package ua.com.fielden.platform.web.interfaces;
+
+import ua.com.fielden.platform.entity.AbstractEntity;
+
+import java.util.Optional;
+
+final class StubEntityMasterUrlProvider implements IEntityMasterUrlProvider {
+
+    @Override
+    public Optional<String> masterUrlFor(final AbstractEntity<?> entity) {
+        return Optional.empty();
+    }
+
+}