clang-format: re-format for clang-18

clang-format-18 isn't compatible with the clang-format-17 output, so we
need to reformat the code with the latest version. The way clang-18
handles lambda forma

clang-format: re-format for clang-18

clang-format-18 isn't compatible with the clang-format-17 output, so we
need to reformat the code with the latest version. The way clang-18
handles lambda formatting also changed, so we have made changes to the
organization default style format to better handle lambda formatting.

See I5e08687e696dd240402a2780158664b7113def0e for updated style.
See Iea0776aaa7edd483fa395e23de25ebf5a6288f71 for clang-18 enablement.

Change-Id: I7b90380845efee6bf6a1fe342a793d71aa9ff181
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>

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regulators: Create FFDCFile class

Create C++ class for a file that contains FFDC (first failure data
capture) data.

This class is used to store FFDC data in an error log. The F

regulators: Create FFDCFile class

Create C++ class for a file that contains FFDC (first failure data
capture) data.

This class is used to store FFDC data in an error log. The FFDC data is
passed to the error logging system using a file descriptor.

The constructor creates the file and opens it for both reading and
writing. The getFileDescriptor() method returns the file descriptor for
reading/writing the file. The destructor closes and deletes the file.

Also moved the test utility functions makeFileUnRemovable() and
makeFileRemovable() to test_utils.hpp so they can be used by multiple
testcases.

Change-Id: Iddef488a28e83a0df7e7f6955c3217ecb3ec2d51

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