wip
CDB-169 #resolve use [importer] ogr2ogr to load SHP files
[importer] ShpNormalizer will raise on an SHP missing required files
[importer] Use SHAPE_ENCODING environment variable to pass the encoding of an SHP to ogr2ogr
CDB-341 #resolve [importer] Import TAB files in Cyrillic encoding
Merge branch 'develop' into feature/CDB-169
[importer] Use WIN1251 for TAB files in Cyrillic encoding
Merge branch 'feature/CDB-169' into develop