ServiceBus GA - API correction based on final review

[hemanttanwar]

This is based on my review. But it needs to be reviewed by other team members.

Please review API View for GA release candidate.

amqp : https://apiview.dev/Assemblies/Review/5dd2fd672f794c76994ddce076eca2f6
service bus : https://apiview.dev/Assemblies/Review/6af850ed7eb04843a6897afbe13cdd28

Following are some my review comments. Pelase look into it.

1. ServiceBusReceivedMessage
   public BinaryData getBody()
   public byte[] getBodyAsBytes()

   I added getBodyAsBytes as convenience.
   .net does not have it.
   And user can easily get bytes from BinaryData.

   Remove getBodyAsBytes()

2. Remove At suffix from follwing peekMessages API.
   .Net and other languages does not have it.
   We have not discussed in long time. I feel like it is just a miss.

Mono peekMessageAt(long sequenceNumber, String sessionId)
Flux peekMessagesAt(int maxMessages, long sequenceNumber, String sessionId)
public Mono peekMessageAt(long sequenceNumber)
Mono peekMessageAt(long sequenceNumber, String sessionId)
public Mono peekMessageAt(long sequenceNumber)

Following does not have 'At' suffix.

Mono peekMessage(String sessionId)
public Mono peekMessage()

3. Make class final
   ServiceBusTransactionContext
   ServiceBusSenderClient
   ServiceBusAdministrationClientBuilder
   CreateQueueOptions
   CreateRuleOptions
   CreateSubscriptionOptions
   CreateTopicOptions
   TopicRuntimeProperties
   FalseRuleFilter
   SharedAccessAuthorizationRule

@srnagar @conniey @JonathanGiles @ramya-rao-a