feat(bigframes): UDF transpiler handles some control flow

[TrevorBergeron]

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Fixes #<issue_number_goes_here> 🦕

[gemini-code-assist]

Code Review

This pull request introduces control flow graph (CFG) construction and topological sorting to transpile Python bytecode with conditional branches and jumps into BigFrames expressions, supported by extensive unit tests. The review feedback highlights several critical improvements, including handling the JUMP_BACKWARD_NO_INTERRUPT instruction to prevent loops from being silently compiled, optimizing CFG building by precomputing instruction offsets to avoid O(N^2) sorting overhead, removing dead code for STORE_FAST, and correcting a misleading stack underflow error message.