Add example code for 1.5 driver documentation

Author: Zhen

Neo4j.Driver/Neo4j.Driver.IntegrationTests/Examples.cs

@@ -85,6 +85,70 @@ public void TestBasicAuthExample()
             }
         }
 
+        public class ConfigConnectionPoolExample : BaseExample
+        {
+            public ConfigConnectionPoolExample(ITestOutputHelper output, StandAloneIntegrationTestFixture fixture)
+                : base(output, fixture)
+            {
+            }
+
+            // tag::config-connection-pool[]
+            public IDriver CreateDriverWithCustomizedConnectionPool(string uri, string user, string password)
+            {
+                return GraphDatabase.Driver(uri, AuthTokens.Basic(user, password),
+                    new Config
+                    {
+                        MaxConnectionLifetime = TimeSpan.FromMinutes(30),
+                        MaxConnectionPoolSize = 50, MaxIdleConnectionPoolSize = 50,
+                        ConnectionAcquisitionTimeout = TimeSpan.FromMinutes(2)
+                    });
+            }
+            // end::config-connection-pool[]
+
+            [RequireServerFact]
+            public void TestConfigConnectionPoolExample()
+            {
+                // Given
+                using (var driver = CreateDriverWithCustomizedConnectionPool(Uri, User, Password))
+                using (var session = driver.Session())
+                {
+                    // When & Then
+                    session.Run("RETURN 1").Single()[0].As<int>().Should().Be(1);
+                }
+            }
+        }
+
+        public class ConfigLoadBalancingStrategyExample : BaseExample
+        {
+            public ConfigLoadBalancingStrategyExample(ITestOutputHelper output, StandAloneIntegrationTestFixture fixture)
+                : base(output, fixture)
+            {
+            }
+
+            // tag::config-load-balancing-strategy[]
+            public IDriver CreateDriverWithCustomizedLoadBalancingStrategy(string uri, string user, string password)
+            {
+                return GraphDatabase.Driver(uri, AuthTokens.Basic(user, password),
+                    new Config
+                    {
+                        LoadBalancingStrategy = LoadBalancingStrategy.LeastConnected
+                    });
+            }
+            // end::config-load-balancing-strategy[]
+
+            [RequireServerFact]
+            public void TestConfigLoadBalancingStrategyExample()
+            {
+                // Given
+                using (var driver = CreateDriverWithCustomizedLoadBalancingStrategy(Uri, User, Password))
+                using (var session = driver.Session())
+                {
+                    // When & Then
+                    session.Run("RETURN 1").Single()[0].As<int>().Should().Be(1);
+                }
+            }
+        }
+
         public class ConfigConnectionTimeoutExample : BaseExample
         {
             public ConfigConnectionTimeoutExample(ITestOutputHelper output, StandAloneIntegrationTestFixture fixture)