Re #26025

Add methods to coordinate via main window so that only one autoprocessing process can be running at a time

Re #26025

- This was to do with the way the presenter is created as an optional. It doesn't need to be an optional here - a unique pointer is better and makes ownership clearer.
- This commit also includes some tidying of the MainWindowSubscriber which was being used incorrectly.
- It also includes replacing some calls to m_presenter with calls to m_notifyee. They are the same object but we should use m_notifyee to be more in keeping with MVP. There is one remaining use of m_presenter in closeEvent but it is beyond the scope of this PR to fix that.

Re #23027

These are no longer required following recent simplification

Re #23027

This is necessary so we can perform different searches per batch using the runs view's algorithm runner when we implement async search

Re #23027

Use the python runner in the main window

Re #23027

Re #23027

We need a separate run notifier per batch because we may have a different autoprocessing process per batch. Therefore move the run notifier down from the main window into the batch's runs presenter.

Re #23027

Re #23027

There are other similar interfaces which will be added to this directory.

Re #23027

Re #23027

Re #23027

Also change catalog searcher and autoreduction to use references rather than shared pointers

Re #23027

MainWindow and Batch subdirectories have been created for these GUI components.
A Common subdirectory has been created for miscellaneous shared utilities.
Unused files have been removed

Re #23041

Re #23027

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

This is no longer required now we're not dealing with different row names for sliced workspaces

Re #22263

Re #22263

Re #22263

Avoids presenters having to know about the parent view and its ability to send notifications to the user

Re #22263

This will be done in an algorithm instead

Re #22263

Update to clang-format-5 and reformat the codebase 

Re #22263

Re #2263

Re #22263

- Deleted reflectometry presenter tests.

Re #22263

- Grouping is now being handled higher up the tree. This commit
  removes a large amount of functionality relating to grouping.
- Also deletes ReflGenericDataProcessorPresenter. This is no longer
  being used by the GUI and expects a different interface to the one
  now provided by ReflRunsTabPresenter.

Re #22263

- Added missing interfaces for SettingsTabView and EventTabView.
- New presenters now get created and removed when tabs are opened and
  closed.

Re #22263

- Started to weaken tab presenter's dependencies on the 'main window'
  presenter.
- Split out part of the main window presenter and view's functionality
  into ReflBatchPresenter.
- ReflBatchPresenter is currently different from the soon-to-be-renamed
  BatchPresenter. ReflBatchPresenter is a presenter which contains a
  runs, settings, events and save tab but which is not the main window
  presenter.

Re #22263