mxliff file type doesn't handle segment statuses correctly in review mode

[jessegood]

When the workflow step is set to "Revision" in Memsource,
m:level becomes "2" and m:confirmed="2" is used for confirmed segments.
Currently the filetype doesn't handle this situation:
https://github.com/sdl/Sdl-Community/blob/master/FileTypeSupport.MXLIFF/MXLIFFParser.cs#L159

See the following discussion in SDL Community for details:
https://community.sdl.com/product-groups/translationproductivity/f/openexchange_applications/32895/segment-status-mapping-for-mxliff-files/108159#108159

[andreaGhisa]

Hi Jesse,

Thank you for reporting this issue. We logged this problem in Jira under this id: SDLCOM-2362 based on the team availability we'll investigate this problem.