@ApplicationPath value ignored by GrizzlyHttpContainer (SE deployment)

Problem: ```@ApplicationPath``` value is not being used when deploying JAX-RS app in SE environment using GrizzlyHttpContainer module.

Environment:
Jersey framework: 2.28
Java VM:
> java version "11.0.2" 2019-01-15 LTS
> Java(TM) SE Runtime Environment 18.9 (build 11.0.2+9-LTS)
> Java HotSpot(TM) 64-Bit Server VM 18.9 (build 11.0.2+9-LTS, mixed mode)

JAX-RS root resource

```java

@Path("hello")
public class HelloResource {

@GET
@Produces(MediaType.TEXT_PLAIN)
public String get() {
return "hello world";
}
}
```

JAX-RS Application

```java
@ApplicationPath("api")

public class AppConfig extends Application {

public AppConfig() {
super();
}

@Override
public Set> getClasses() {
Set> classes = new HashSet<>();

classes.add(HelloResource.class);

return classes;
}
}
```

JAX-RS SE deployment using Jersey framework containers (grizzly)

```java
public static void main( String[] args ) throws Exception
{
URI baseUrl = URI.create("http://localhost:80");

// Jersey
ResourceConfig rc = ResourceConfig.forApplicationClass(AppConfig.class);

// container (GrizzlyHttpContainer) + server (Grizzly HttpServer)
HttpServer server = GrizzlyHttpServerFactory.createHttpServer(baseUrl, rc, false);

server.start();
System.in.read();
server.shutdown();
}
```

output:

```curl -i 'http://localhost:80/api/hello``` -> ```404 Not Found```

```curl -i 'http://localhost:80/hello``` -> ```hello world```

maven

```xml

org.glassfish.jersey
jersey-bom
2.28
import
pom

org.glassfish.jaxb
jaxb-bom
2.3.2
import
pom

org.glassfish.jersey.containers
jersey-container-grizzly2-http

org.glassfish.jersey.inject
jersey-hk2
runtime

org.glassfish.jaxb
jaxb-runtime
runtime

```

Start with the GrizzlyHttpServerFactory.createHttpServer call and the ResourceConfig.forApplicationClass(AppConfig.class) setup shown in the report. Reproduce the deployment with @ApplicationPath("api") and verify that /api/hello responds instead of only /hello; done means the declared application path is honored in the SE Grizzly deployment.

Written by the indexing model from the issue text.