Catch TypeError from function calls and convert to FireError

[saivedant169]

Fixes #633

Description

When a function call raises TypeError due to missing or unexpected arguments, the exception now gets converted to FireError so it flows through Fire's error display pipeline (error message + usage text) instead of crashing with a raw Python traceback.

The existing _ParseArgs validation catches most missing-argument cases before the function is called. But edge cases — like *args unpacking mismatches, keyword argument conflicts, or arguments that Fire's parser couldn't map — can slip through to the actual fn(*varargs, **kwargs) call in _CallAndUpdateTrace.

What changed

Wrapped the function call block (lines 679-690) in _CallAndUpdateTrace with a try/except that:

1. Catches TypeError exceptions
2. Checks if they're argument-related (contains "required", "missing", or "argument" in the message)
3. Converts them to FireError for proper error display
4. Re-raises non-argument TypeError unchanged (e.g., errors from within the function body)

Testing

• All 91 existing tests pass (pytest fire/core_test.py fire/fire_test.py)
• pylint fire/core.py scores 10.00/10

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