Removes all of the from __future__ imports that open and close the
brackets on the same line. This is most of them.

Co-Authored-By: StephenSmith25 <56431339+StephenSmith25@users.noreply.github.com>

Needed to add checks around makedirs(), throws an error if the directory
already exists.

Also updated class_maker.py

Fixes all flake8 3.7.9 warnings as part of the Python 2->3 transition.

Also removes the existing functionity for selecting a bank, as this can
be handled by the cropping widget.

The functionality was the same across calibration and focus.

Currently, there is no way to load a CSV file (which is the format
that the full calibration is in) into mantid to be used by the GUI.
Until that is added, the option to select the full calibration has been
hidden from the user.
The functionality is there, so once the loading works for large CSVs the
hide() call can be removed.

- Remove repeated searching checks

- Split test into reasonable chunks

- Make rb_num naming consistent

Loading the vanadium to be used later on makes more sense to do at this
stage than at the start of the focusing step.

Documentation has been added for the less obvious public and private methods.
Some of the methods in the model should be shown as private, so have
had methods refactored.

Creating a new focus now saves a nexus file to the file system. The old GUI saves multiple file types, but since I'm not sure what they actually use, nexus seems like a safe proof of concept for now.

Initially the plot buttons and parameters didn't do anything in the model. Checking the box now sets if plots are created for the workspaces.

Initial version of the model. Currently missing the plotting, file creation, and file system interaction.

Populates the Interfaces menu if any exist.

Import qtpy instead of PyQt4

use load_ui instead of genereated python ui files

Refs #24669

Add SANS v2 GUI to workbench interfaces

Begin to change SANS code to use qtpy

Begin to change SANS import to mantidqt from mantidqtpython

Refs #24669

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

Refs #0

Refs #21251

Refs #21251

# Please enter a commit message to explain why this merge is necessary,
# especially if it merges an updated upstream into a topic branch.
#
# Lines starting with '#' will be ignored, and an empty message aborts
# the commit.

Refs #20381