Add "clone" button to TableView

[Joern Ungermann]

When panning a small flightlevel change, it is often desirbale to have two identical WP suceeding each other with just different levels. The insert button inserts a new WP in between two WPs, which is also convinient for moving this WP then with the mouse.

I propose to add an additional "clone" button that fully copies a WP.

[Reimar Bauer]

we should enable this in a context menu

[Shivashis Padhi]

Working on this.

[Reimar Bauer]

Merged in plant99/mss/i254 (pull request #625)

Add clone feature for waypoint in tableview, fixes#254

Approved-by: Joern Ungermann [e-mail]

→ <<cset 5f8f602503ba>>

[Reimar Bauer]

When panning a small flightlevel change, it is often desirbale to have two identical WP suceeding each other with just different levels. The insert button inserts a new WP in between two WPs, which is also convinient for moving this WP then with the mouse.

I propose to add an additional "clone" button that fully copies a WP.