Refs #5300 Add reference results for Moments.
Refs #5300 Update name of output workspace.
Refs #5300 Update reference results accordingly.
Refs #8739 Update ConvFit to match new parameters.
Refs #8739 Update reference results.

The fit is still the same, but the x-values have changed because we're now using ConvertSpectrumAxis.
Refs #5300 Fix broken system tests.
Refs #5300 Swap name of algorithm in system tests.
Refs #5300 Update reference result to reflect changes.

There's a slight difference between the x/y values output from moments but it's negligible.
Refs #8739 Update system tests to match.
Refs #8739 Update test workspace names to reflect changes.
Merge remote-tracking branch 'origin/feature/5300_moments_sqw_tab'. Refs #5300.

Conflicts:
- SystemTests/AnalysisTests/ISISIndirectInelastic.py
Wrote system test for PoldiAutoCorrelation

The test performs the analysis on two samples (6903, 6904) and compares the results to the output of the original fortran program.
Since the results are not exactly the same because of numerical differences and some minor bugfixes on the way, a linear fit
between expectation and result is performed and slope/intercept are checked for acceptable values.
Adjusted PoldiAutoCorrelation system test to new structure
Updated reference data after error correction and adjusted error limits
Banned poldi systemtest files from LoadLotsOfFiles
Merge pull request #4 from MichaelWedel/feature/poldi-autocorrelation-systemtest

PoldiAutoCorrelation system test
Add memory limit to SANS2DMultiperiodAddFiles test

Refs #9177
Add lower memory limit to DirectInelasticDiagnostic test

Refs #9177
Merge remote-tracking branch 'origin/feature/9177_memlimits'
Re #9157. First, permissive, version of coding convention check