[PostGIS] #5848: expose a lower level function of TopoGeo_AddLineString that returns more info

[PostGIS]

#5848: expose a lower level function of TopoGeo_AddLineString that returns more
info
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  Reporter:  Lars Aksel Opsahl  |      Owner:  strk
      Type:  enhancement        |     Status:  new
  Priority:  medium             |  Milestone:  PostGIS 3.5.3
 Component:  topology           |    Version:  3.4.x
Resolution:                     |   Keywords:
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Comment (by Lars Aksel Opsahl):

 Nice maybe we also can reuse some this in functions like this
 [https://gitlab.com/nibioopensource/pgtopo_update_sql/-/blob/develop/src/sql/topo_update/function_02_add_border_split_surface.sql?ref_type=heads]

 For resolve overlap and gap we use work around for now.

 Before we start on this issue we need to get control of the rest of the
 projects for this year so we keep this on hold for now.

 How many hours do you think this issue may take to implement ?
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Ticket URL: <https://trac.osgeo.org/postgis/ticket/5848#comment:6>
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