Python: Fix for AzureAIAgent streaming func call invocations. Other fixes/improvements for tool call content types, and logging. #9759

Job	Run time
Python Unit Tests (3.10, macos-latest, false)	2m 36s
Python Unit Tests (3.12, windows-latest, false)	3m 47s
Python Unit Tests (3.10, windows-latest, false)	2m 55s
Python Unit Tests (3.11, macos-latest, false)	1m 55s
Python Unit Tests (3.11, windows-latest, false)	4m 9s
Python Unit Tests (3.10, ubuntu-latest, false)	2m 31s
Python Unit Tests (3.12, ubuntu-latest, false)	2m 21s
Python Unit Tests (3.12, macos-latest, false)	1m 47s
Python Unit Tests (3.11, ubuntu-latest, false)	2m 29s
Python Unit Tests (3.13, ubuntu-latest, true)	2m 32s
	27m 2s

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