feat(ec2): add EC2 service with 61 operations, integration tests, and docs (#48)

Author: hectorvent

sdk-test-java/pom.xml

@@ -94,6 +94,10 @@
             <groupId>software.amazon.awssdk</groupId>
             <artifactId>iam</artifactId>
         </dependency>
+        <dependency>
+            <groupId>software.amazon.awssdk</groupId>
+            <artifactId>ec2</artifactId>
+        </dependency>
         <dependency>
             <groupId>software.amazon.awssdk</groupId>
             <artifactId>sts</artifactId>