This updates Boost to 1.88, which is needed because Clio wants to move to 1.88 as that fixes several ASAN false positives around coroutine usage. In order for Clio to move to newer boost, libXRPL needs to move too. Hence the changes in this PR. A lot has changed between 1.83 and 1.88 so there are lots of changes in the diff, especially in regards to Boost.Asio and coroutines in particular.
The codebase is filled with includes that are unused, and which thus can be removed. At the same time, the files often do not include all headers that contain the definitions used in those files. This change uses clang-format and clang-tidy to clean up the includes, with minor manual intervention to ensure the code compiles on all platforms.