Create Line with Points, Prompts

[MikeMillerGIS]

• [x] Label the dialogs with start, middles, end
• [x] If not vertex was added, suppress middle prompts

See NIW doc

[MikeMillerGIS]

implemented. The dialog should know include the layer name and at what point along the line the template is to be applied.

If a line with only a start and end is sketched, the middle template is not prompted.