fix(handling-loader-five): handle m_acceleration and fAcceleration aliases

[cduke0]

Summary

• add explicit m_acceleration and fAcceleration aliases for CHandlingData
• read and write those aliases through the existing acceleration float at offset 0x4C
• stop scanning parser members once an alias has already been handled

Why

m_acceleration and fAcceleration map to the same acceleration value in CHandlingData, but they are not exposed through the normal parser member lookup. As a result, handling getter/setter calls for those names fall through to No such field even though the backing field exists.

Impact

Scripts can now read and write acceleration using either alias without breaking the existing conversion logic in setFloatField and getFloatField.

Validation

• git diff --check
• verified the final one-file diff matches the requested patch

Notes

• no full FiveM build was run in this environment