Add description for ST_AddZ
Update description for ST_AddZ
Add description and image for ST_Densify
Add description for ST_Interpolate3DLine
Add description for ST_MultiplyZ
Add description for ST_Normalize
Add description and image for ST_RemoveHoles
Update description and add images for ST_RemovePoint
Update description for ST_RemovePoint
Update images for ST_RemovePoint
Update examples with Z values for ST_AddZ and ST_MultiplyZ
Add description for ST_RemoveRepeatedPoints
Add descirption and images for ST_Reverse
Update description for ST_Reverse
Add images and update examples for ST_RemovePoint
Merge branch 'st_removepoint' into edit_functions
Add description for ST_Reverse3DLine
Add description for ST_UpdateZ
Add description for ST_ZUpdateLineExtremities
Update description for ST_ZUpdateLineExtremities