detected_language attribute for DocumentStatus

**Is your feature request related to a problem? Please describe.**
When using the [TextTranslationClient Class](https://learn.microsoft.com/en-us/python/api/azure-ai-translation-text/azure.ai.translation.text.texttranslationclient?view=azure-python-preview#azure-ai-translation-text-texttranslationclient-translate) to translate text, I can get the detected_language attribute from the [TranslatedTextItem](https://learn.microsoft.com/en-us/python/api/azure-ai-translation-text/azure.ai.translation.text.models.translatedtextitem?view=azure-python-preview#azure-ai-translation-text-models-translatedtextitem-detected-language) object, but the same is not possible for the [DocumentStatus](https://learn.microsoft.com/en-us/python/api/azure-ai-translation-document/azure.ai.translation.document.documentstatus?view=azure-python-preview) of the [DocumentTranslationClient](https://learn.microsoft.com/en-us/python/api/azure-ai-translation-document/azure.ai.translation.document.documenttranslationclient?view=azure-python-preview#azure-ai-translation-document-documenttranslationclient-get-translation-status). This is problematic as my users would like to know the language their documents was translated from.

**Describe the solution you'd like**
A detected_language attribute on the DocumentStatus class.

**Describe alternatives you've considered**
Any way to get this information without also translating documents or part of them with TextTranslationClient would work.