Update client error handling

[mhoyer-streamlabs]

Description

Update client error handling to ensure all errors are passed along to the front end by replacing conn->call with conn->call_synchronous_helper and parsing the return. In some streaming/recording/replay buffer cases, clear the existing object ref and don't set the new one if the back end call fails. Replaced std::vector<ipc::value> with auto to shorten calls and make them easier to read.

Motivation and Context

Some important errors were being ignored.

How Has This Been Tested?

Types of changes

• Bug fix (non-breaking change which fixes an issue)

• Tweak (non-breaking change to improve existing functionality)

• Code cleanup (non-breaking change which makes code smaller or more readable)

Checklist:

• The code has been tested.
• All commit messages are properly formatted and commits squashed where appropriate.
• I have included updates to all appropriate documentation.