NIFI-7468 Updated SSLSocketChannel to support TLS 1.3

- Handling additional FINISHED Handshake Status for TLS 1.3 Post-Handshake Messages per RFC 8446 Section 4.6
- Removed clearing buffers after handshake to avoid losing packets
- Updated read() method to check Handshake Status after SSLEngine.unwrap()
- Changed SSLSocketChannelSender to close SSLSocketChannel before other resources
- Added ChannelStatus enum and convenience logging methods for tracing status
- Added unit tests for TLS 1.2 and 1.3 using Netty server and client handlers

NIFI-8704 Updated netty-handler to 4.1.65.Final

NIFI-7468 Corrected SSLSocketChannel.read() to return byte read

NIFI-7468 Adjusted comment formatting

Signed-off-by: Nathan Gough <thenatog@gmail.com>

This closes apache#5152.

nifi-commons/nifi-security-socket-ssl/pom.xml

@@ -31,5 +31,17 @@
             <groupId>org.slf4j</groupId>
             <artifactId>slf4j-api</artifactId>
         </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-security-utils</artifactId>
+            <version>1.14.0-SNAPSHOT</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>io.netty</groupId>
+            <artifactId>netty-handler</artifactId>
+            <version>4.1.65.Final</version>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 </project>