MITAB: Add Sweref99 (EPSG:6619) to datum-table

[foggel]

MITAB is missing the Sweref99 datum In ogr/ogrsf_frmts/mitab/mitab_spatialref.cpp the table asDatumInfoList[] is missing Sweref99/EPSG:6619

​https://epsg.io/6619-datum

The MITAB Coordsys-string should be: Earth Projection 8, 33, "m", 15, 0, 0.9996, 500000, 0

I think this is what should be added to mitab_spatialref.cpp:asDatumInfoList[]

{ 6619, 33, "SWEREF99", 0, 0, 0, 0, 0, 0, 0, 0, 0},

[Even Rouault]

In 41773:

MITAB: add support for SWEREF99 datum (patch by foggel, fixes #7256)

[Even Rouault]

In 41774:

MITAB: add support for SWEREF99 datum (patch by foggel, fixes #7256)