new function to return nth point forward or backward
corriged bug : -1 gives now the last point
example commented
deconstrained output type to allow Z geom
new function to get all incoming/outcoming edge of a node ordered clockwise
new topo function to get ordered list of topogeom line for a topogeom node
WARNING : breaking changes
fixing precision issue and divide by 0
added comment to note that point MUST be of same dimension
Changing the order of argument ot match : center, first point, second point
adding a parameter to allow disallowance of full circle
adding an aggregate found on the net that return last/first of group
new function to generate orhtogonal line using substring
removing non pertinent comments
correcting an error : line was 2 times too large
removing the snapping that causes errors