Add the `add_tool()`, `remove_tool()` and `remove_all_tool()` me… #2842

Job	Run time
docs (./packages/autogen-core)	1m 32s
docs-example-check (./packages/autogen-core)	2m 23s
format	58s
lint	48s
mypy (./packages/autogen-core)	1m 22s
pyright (./packages/autogen-core)	55s
mypy (./packages/autogen-magentic-one)	1m 6s
test (./packages/autogen-core)	1m 2s
pyright (./packages/autogen-magentic-one)	56s
mypy (./packages/agbench)	59s
test (./packages/autogen-magentic-one)	1m 34s
pyright (./packages/agbench)	52s
test (./packages/autogen-ext)	2m 52s
mypy (./packages/autogen-ext)	1m 21s
pyright (./packages/autogen-ext)	56s
test (./packages/autogen-agentchat)	55s
mypy (./packages/autogen-agentchat)	1m 5s
pyright (./packages/autogen-agentchat)	53s
check-proto-changes-python	1m 7s
	23m 36s

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