Updated the loadmuonnexus1 loader to read period information. Created a new widget for the period information. Need to deal with what happens when information cannot be found

Runs clang-tidy pass by ref across the codebase to fix-up various
warnings we are seeing in cppcheck

Also updated class_maker.py

This commit replaces all header guards in Nexus and NexusGeometry with #pragma once

Update copyright headers in all files

Squashed commit of the following:

* First version of a script to manage copyright statements

re #23468

* Neatened up script, added comments

re #23488

* move script to tools directory

re #23488

* small script changes and a couple of manual file changes

re #23488

* Minor chnage to whitespace detection in regex

re #23488

* Add an excluded directory

re #23488

* remove a repeasted copyright statement in a file

re #23488

* Don't comsume the comment end if it is on the same line

re #23488

* fix error in new copright parsing

re #23488

* remove double copyrifght entry

re #23488

* Improve handling of old copyrights at the start of comments

re #23488

* remove empty comments re #23488

* exclude gsoapgenerated directories

re #23488

* Sort out greedy line matching re #23488

* improve empty comment removal

re #23488

* improve false positives

re #23488

* impressive speedup by limiting regex matching length

re #23488

* remove evil invisible non ascii character

Also upadte the copyright at the same time

re #23488

* resolve multiple copyrights in a single file

re #23488

* resolve an issue with new statement detection

re #23488

* another unprintable unicode character

re #23488

* pep updates and cmake the new copyright fit clang format

re #23488

* update already done new format headers

re #23488

* wrong type of bracket

re #23488

* Update class_maker and friends

re #23488

* Update all copyright statements

re #23488

* clang format re #23488

* flake8 warnings re #23488

* Flake8 warnings re #23488

* Exclude .cmake.in and rb.in files

re #23488

* replace missing line re #23488

* exclude .py.in files as they are flasely recognized as C++

re #23488

* another setp.py.in re #23488

* another .py.in correction re #23488

* Hopefully the last of the .py.in files re #23488

* resolve utf-8 encoding of python files and changed ABINS checksum

re #23488

* updates to unit tests that reference line numbers

re #23488

* remaining unit test files and other fixes

re #23488

Move static loggers to cpp files and remove some unnecessary loggers
Refs #9059

The log is the just skipped instead of LoadMuonLog failing. It means
that if the files contains a few malformed logs, we can still load the
other ones.

Fixed tests outside NeXus/DataHandling that relied on loading data
Had to add Nexus as a link dependency for various package Test targets - don't know why!
refs #2822

Rename Framework code directory to just that. Also delete Main and VS & Eclipse project file. Re #1881.

Copyright updated to read
Copyright © 2007-10 ISIS Rutherford Appleton Laboratory & NScD Oak Ridge National Laboratory

SaveNexusProcessed updated. Now writes most required data, but lacking detector spectra map and time series properties.
Re #215

Also added some unit tests.
Existing SaveNexus method not yet replaced.
Re #215

Added support for multiperiod data in Muon Nexus files which for the Emu examples is detected by reading the "switching_states" field - this is taken as number of periods and histogram data divided between periods by this.
Re #182

Re #182

Re #182

Re #182

Added reading of instrument data from an XML definition or from the Nexus file. As no XML for EMU and the Nexus file lacks sufficient data at present, no instrument data is loaded.
Re #182