RCP: Progression, add an export\chart functionality in tree node contextual menu and global tool bar

Add an export\chart functionality in tree node contextual menu and global tool bar as for the other charts.

(from redmine: issue id 1673, created on 2016/02/12 by Sebastien Jacquot)

added charts type::feature + 1 deleted label

changed milestone to %TXM 0.8.2

Done.

(from redmine: written on 2019/10/30 by Sebastien Jacquot)

closed

assigned to @sjacquot