FIX ValueError with Azure TTS Target in Single Turn Conversation Using PromptSendingOrchestrator

[nina-msft]

Description

Bug fix to address the ValueError with Azure TTS Target in Single Turn Conversations - although this affects any target that enforces single turn conversations (e.g. AzureBlobStorageTarget, AzureOpenAICompletionTarget, etc.).

Fix will add prompt request information to memory after it is sent through to the target (instead of before). In the case of an exception being thrown, both request and exception will be added to memory.

** There is another bug fix within Translation Converter here as well, discovered while running Jupytext. There is no capitalization normalization on the keys of the languages provided in the response, so there was a KeyError when requesting the language if provided in different capitalization.

Tests and Documentation

Two new unit tests to verify that request and response are added to memory as expected.
Documentation updated to use AzureTTSTarget with the PromptSendingOrchestrator, which verifies the end to end scenario of the original bug.

Jupytext ran for the addition to the orchestrator code documentation.

[rlundeen2]

Based on if you agree with my comments. If you punt or want to talk about any let me know!