Change 'depth_diff_max' to 'max_depth_diff'

[Techassi]

When using the reconstruction system located in examples/python/reconstruction_system the first step Make fragments failes to run. I tested the latest version of the master branch (c43eabe).

python run_system.py --config ./config/tutorial.json --make

After fixing the error

AttributeError: 'open3d.cpu.pybind.pipelines.odometry.OdometryOption' object has no attribute 'depth_diff_max'

with the in this PR provided change, the script ran without any issues.

It seems like the commit c8f8f40 has introduced this change in the C++ source.

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This change is 

[update-docs]

Thanks for submitting this pull request! The maintainers of this repository would appreciate if you could update the CHANGELOG.md based on your changes.

[yuecideng]

If you want to use the latest master of open3d, please download the latest python package or build open3d from source. Otherwise you should use the latest release 0.15.1 branch to run the example. @Techassi

Update: the master branch wheel link has been updated to: http://www.open3d.org/docs/latest/getting_started.html#pip-pypi

[yxlao]

Thanks @Techassi . This has been addressed in #5167.

If you are using the example code from mater, you may compile from source, or download the master wheel from http://www.open3d.org/docs/latest/getting_started.html#pip-pypi

[Techassi]

Okay thx. Good to know!