Add rustfmt-like clang-format

[contagon]

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[Copilot]

Pull Request Overview

This PR adds a Rustfmt-like clang-format configuration and reformats the existing C++ headers and binding files to match the style rules.

• Introduce a .clang-format with prescribed style settings.
• Convert single-line function and lambda definitions into consistent multi-line formatting.
• Align chained Nanobind calls and include directives according to the new style.

Reviewed Changes

Copilot reviewed 9 out of 10 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
cpp/evalio/types.h	Expanded inline methods and operators to multiline definitions.
cpp/evalio/pipeline.h	Reformatted static info methods to multiline style.
cpp/bindings/types.h	Wrapped Nanobind .def calls and includes onto separate lines.
cpp/bindings/ros_pc2.h	Reformatted lambdas and function signatures to multiline.
cpp/bindings/pipelines/lio_sam.h	Converted inline helpers and class methods to multiline.
cpp/bindings/pipelines/kiss_icp.h	Updated pipeline helpers and methods to multiline definitions.
cpp/bindings/pipeline.h	Reformatted trampoline and binding calls to multiline style.
cpp/bindings/main.cpp	Adjusted module definitions to multiline formatting.
.clang-format	Added new clang-format configuration file.