Set `performancelog.filename` default to `algotimeregister.out`

Description of work

When I ran the mantid algorithm profiler for the first time in months, it wouldn't work because it couldn't find the output algotimeregister.out file. Through some digging I found out that the default had been (possibly accidentally) changed to algorithmregister.out so that it no longer matched with the default searched for by the mantid-profiler.

Additionally, everytime I rebuild mantid, this option will change, so I sometimes do my profiling (taking > 10 minutes), and then find out that the wrong output file was set in the Mantid.properties. This change makes sure that the default filename matches the performancelog filename expected by the algorithm profiler.

To test:

Run the mantid-profiler on the following python script

from mantid.simpleapi import Load

filepath = "//olympic/Babylon5/Public/RobApplin/loading"
filename = "irs26176_graphite002_red_Conv_seq_2L_0-50__Result.nxs"

Load(
    Filename=f"{filepath}/{filename}",
    LoadHistory=True,
    OutputWorkspace="output_workspace",
)

Make sure that the correct file (algotimeregister.out) is output in your working directory (or it might be in the build directory).

This does not require release notes because this is not user-facing

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mantidproject / mantid