FoundationaLLM Content Search tool (skunkworks) and supporting changes

[codingbandit]

FoundationaLLM Content Search tool (skunkworks) and supporting changes

The issue or feature being addressed

RAG pattern implementation over an Azure AI Search Index using LangChain.
Indexing and Partitioning profile settings are now serialized as snake case keys.
Embedding profile objects are now available as an option when adding tool resources.
Adds vectorization resource provider constants to the PythonSDK.
Adds the ability to retrieve multiple ResourceObjectIdProperties of the same object_role (for multiple indexing profiles).
Adds instance id to the exploded objects (and completion request key enums in C# and Python)
Small cosmetic fixes to the management portal.

Details on the issue fix or feature implementation

N/A

Confirm the following

• I started this PR by branching from the head of the default branch
• I have targeted the PR to merge into the default branch
• This PR needs to be cherry-picked into at least one release branch
• I have included unit tests for the issue/feature
• I have included inline docs for my changes, where applicable
• I have successfully run a local build
• I have provided the required update scripts, where applicable
• I have updated relevant docs, where applicable