Replace boost constants

[henrygerardmoore]

Background

When MoveIt2 is converted to the C++20 standard, it will be possible to remove the usage of boost::math::constants and replace them with the equivalent constants from std::numbers. See the constants listed here for more information. If you want to check, the C++ standard currently used can be seen here (if the link is dead, go to the moveit_package.cmake file in moveit2/moveit_common/cmake/). If this is still C++17 (there will be a line that says set(CMAKE_CXX_STANDARD 17)) then this task cannot be completed yet.

This issue follows from #1372 and #1331 in incrementally removing the usage of boost from the MoveIt codebase.

Instructions

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Good luck with your first issue!

[henrygerardmoore]

Oops, will be closed in #1372 as math.h also includes pi.