Add dependency on PythonInterface

Add ability to pickle table workspaces

Indirect - Fitting - ExtractQENSMembers Algorithm

This fixes #21360

Fix ErrorFormatter to workaround bug in Python 3.4

Force reset of googletest before applying patches

Refs #21648

GSASIIRefineFitPeaks output fitted peaks workspace

Sphinx training docs

Refs #21648

Fixes failing unit test for numpy >=1.14

In numpy 1.14 the precision of printing scalars changed. This rounds the number to the same as < 1.14 for the test.

Fix docstring directives for old sip definitions.

Remove Python.h include

On 'make clean' the targets are marked out of date and then cmake tries
to reapply our patches but they won't apply cleanly a second time around.
Simplest way to solve this is to force a reset before applying the patches

Including this on its own forces MSVC to use the special debug build of Python in Debug mode which is not the behaviour that we want.

Remove RHEL6 from build scripts

traceback.format_exception is supposed to ignore the tb argument if it is None but
in 3.4 the current traceback is always printed
https://github.com/python/cpython/commit/c3f417dc47b3a9564608c98cd176c530d9ebdf09#diff-e57ff53a569d0ebbe201ad0c102ee27e

Add tools for parsing unit & system test speeds.

Update WAND² IDF

Fix relying on undocumented bug in older jinja2.

Update WAND² IDF to round s2 and detz; also invert pixel indexing along wire so hopefully it's now correct

Move back to running doctests on a separate thread