Feature/187 use custom processing ogr2ogr

[benoitblanc]

Use custom GDAL processing (see #193) to convert GMLAS file to database and vice versa.

Related to #187

[codecov-commenter]

Codecov Report

Merging #194 (f2d45ca) into master (c368f6d) will decrease coverage by 17.87%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master    #194       +/-   ##
==========================================
- Coverage   18.66%   0.78%   -17.88%     
==========================================
  Files          42      42               
  Lines        3697    3673       -24     
  Branches      618     607       -11     
==========================================
- Hits          690      29      -661     
- Misses       2954    3643      +689     
+ Partials       53       1       -52     

Impacted Files	Coverage Δ
...lication_schema_toolbox/core/load_gmlas_in_qgis.py	0.00% <0.00%> (-80.52%)	⬇️
...plication_schema_toolbox/gui/export_gmlas_panel.py	0.00% <0.00%> (ø)
...pplication_schema_toolbox/gui/gmlas_panel_mixin.py	0.00% <0.00%> (ø)
...plication_schema_toolbox/gui/import_gmlas_panel.py	0.00% <0.00%> (ø)
gml_application_schema_toolbox/viewers/__init__.py	0.00% <0.00%> (-100.00%)	⬇️
...ml_application_schema_toolbox/toolbelt/__init__.py	0.00% <0.00%> (-100.00%)	⬇️
...l_application_schema_toolbox/gui/custom_viewers.py	0.00% <0.00%> (-90.00%)	⬇️
gml_application_schema_toolbox/core/gmlas_xpath.py	0.00% <0.00%> (-79.32%)	⬇️
...lication_schema_toolbox/gui/wait_cursor_context.py	0.00% <0.00%> (-71.43%)	⬇️
gml_application_schema_toolbox/core/xml_utils.py	0.00% <0.00%> (-68.86%)	⬇️
... and 18 more