New GDMS functions and editing tools (Merged)

Merge of Erwan's PR #411

This PR add :

    Two new GDMS function ST_ProjectTo to project a point a long a line using the hausdorff distance and St_Split to split a line or polygon using a point or a line.

    Two automatons : Spline line by a line that implements the ST_SPLIT utilities and info tool that permits to open the selected features in its associated attributes tables.