title: How to add the ToPoint and FromPoint of a line on one layer to another layer / feature class
body: <p>I have a roads layer.
  I need to ad a point to another, point layer where ever roads intersect.
  How can I add such points to the existing points layer.</p>
  
  <p>In hand I have the line layer, the line feature / To and From Points, and the points layer.
  I just need a pointer as to how to create points in the points layer.</p>
  
  <p>I am using C#</p>
  
  <p>Thank you.</p>