feat: support RemoteWebDriver

Example usage:

```xml
<plugin>
  <groupId>com.github.searls</groupId>
  <artifactId>jasmine-maven-plugin</artifactId>
  <version>${jasmine-maven-plugin.version}</version>
  <executions>
    <execution>
      <goals>
        <goal>test</goal>
      </goals>
    </execution>
  </executions>
  <configuration>
    <serverHostname>${accessibleHostname}</serverHostname>
    <webDriverClassName>org.openqa.selenium.remote.RemoteWebDriver</webDriverClassName>
    <webDriverCapabilities>
      <webDriverCapability>
        <name>browserName</name>
        <value>chrome</value>
      </webDriverCapability>
      <webDriverCapability>
        <name>goog:chromeOptions</name>
        <value implementation="org.openqa.selenium.chrome.ChromeOptions">
          <headless>true</headless>
        </value>
      </webDriverCapability>
    </webDriverCapabilities>
  </configuration>
</plugin>
```

closes #234
closes #235
closes #349

src/main/java/com/github/searls/jasmine/config/WebDriverConfiguration.java

@@ -22,10 +22,12 @@
 import com.github.searls.jasmine.mojo.Capability;
 import org.immutables.value.Value;
 
+import java.net.URL;
 import java.util.List;
 
 @Value.Immutable
 public interface WebDriverConfiguration {
   String getWebDriverClassName();
   List<Capability> getWebDriverCapabilities();
+  URL getRemoteWebDriverUrl();
 }

src/main/java/com/github/searls/jasmine/driver/WebDriverFactory.java

@@ -30,6 +30,7 @@
 import org.openqa.selenium.chrome.ChromeDriver;
 import org.openqa.selenium.chrome.ChromeOptions;
 import org.openqa.selenium.remote.DesiredCapabilities;
+import org.openqa.selenium.remote.RemoteWebDriver;
 
 import javax.inject.Named;
 import java.lang.reflect.Constructor;
@@ -47,6 +48,7 @@ public class WebDriverFactory {
   private static final Map<String, Function<WebDriverConfiguration, WebDriver>> SUPPORTED_DRIVERS =
     ImmutableMap.<String, Function<WebDriverConfiguration, WebDriver>>builder()
       .put(ChromeDriver.class.getName(), WebDriverFactory::createChromeDriver)
+      .put(RemoteWebDriver.class.getName(), WebDriverFactory::createRemoteWebDriver)
       .build();
 
   public WebDriver createWebDriver(WebDriverConfiguration config) {
@@ -157,4 +159,8 @@ private static WebDriver createChromeDriver(WebDriverConfiguration config) {
       config
     ));
   }
+
+  private static WebDriver createRemoteWebDriver(WebDriverConfiguration config) {
+    return new RemoteWebDriver(config.getRemoteWebDriverUrl(), getCapabilities(config.getWebDriverCapabilities()));
+  }
 }

src/main/java/com/github/searls/jasmine/mojo/TestMojo.java

@@ -46,6 +46,7 @@
 import org.slf4j.LoggerFactory;
 
 import javax.inject.Inject;
+import java.net.URL;
 import java.util.Collections;
 import java.util.List;
 
@@ -67,13 +68,14 @@ public class TestMojo extends AbstractJasmineMojo {
    * <li>org.openqa.selenium.htmlunit.HtmlUnitDriver</li>
    * <li>org.openqa.selenium.firefox.FirefoxDriver</li>
    * <li>org.openqa.selenium.ie.InternetExplorerDriver</li>
+   * <li>org.openqa.selenium.remote.RemoteWebDriver</li>
    * </ul>
    * <br>
    * See the webDriverCapabilities property for configuring driver specific properties.
    *
    * @since 1.1.0
    */
-  @Parameter(defaultValue = "org.openqa.selenium.chrome.ChromeDriver")
+  @Parameter(property = "jasmine.webDriverClassName", defaultValue = "org.openqa.selenium.chrome.ChromeDriver")
   private String webDriverClassName = ChromeDriver.class.getName();
 
   /**
@@ -109,6 +111,14 @@ public class TestMojo extends AbstractJasmineMojo {
   @Parameter
   private List<Capability> webDriverCapabilities = Collections.emptyList();
 
+  /**
+   * <p>The URL to your RemoteWebDriver server. This is only relevant if you are using the RemoteWebDriver.</p>
+   *
+   * @since 3.0
+   */
+  @Parameter(property = "jasmine.remoteWebDriverUrl", defaultValue = "http://localhost:4444/wd/hub")
+  private URL remoteWebDriverUrl = null;
+
   /**
    * <p>Determines the format that jasmine:test will print to console.</p>
    * <p>Valid options:</p>
@@ -265,6 +275,7 @@ private WebDriverConfiguration getWebDriverConfiguration() {
     return ImmutableWebDriverConfiguration.builder()
       .webDriverCapabilities(webDriverCapabilities)
       .webDriverClassName(webDriverClassName)
+      .remoteWebDriverUrl(remoteWebDriverUrl)
       .build();
   }