Add Scylla Cloud example

Adds an usage example which is slightly modified ReadCassandraVersion.

Author: Bouncheck

examples/src/main/java/com/datastax/oss/driver/examples/scyllacloud/ReadScyllaVersion.java

@@ -0,0 +1,33 @@
+package com.datastax.oss.driver.examples.scyllacloud;
+
+import com.datastax.oss.driver.api.core.CqlSession;
+import com.datastax.oss.driver.api.core.DefaultProtocolVersion;
+import com.datastax.oss.driver.api.core.config.DefaultDriverOption;
+import com.datastax.oss.driver.api.core.config.DriverConfigLoader;
+import com.datastax.oss.driver.api.core.cql.ResultSet;
+import com.datastax.oss.driver.api.core.cql.Row;
+import java.io.File;
+
+public class ReadScyllaVersion {
+
+  public static void main(String[] args) {
+    String configPath = "/path/to/scylla/cloud/conf/file";
+    File configFile = new File(configPath);
+    DriverConfigLoader loader =
+        DriverConfigLoader.programmaticBuilder()
+            .withString(DefaultDriverOption.PROTOCOL_VERSION, DefaultProtocolVersion.V4.toString())
+            .build();
+
+    try (CqlSession session =
+        CqlSession.builder()
+            .withConfigLoader(loader)
+            .withScyllaCloudSecureConnectBundle(configFile.toPath())
+            .build()) {
+      ResultSet rs = session.execute("select release_version from system.local");
+      Row row = rs.one();
+      assert row != null;
+      String releaseVersion = row.getString("release_version");
+      System.out.printf("Scylla version: %s%n", releaseVersion);
+    }
+  }
+}