Update ChangeLog.txt
Enh - Convert segmentation to MTG
Finish MTG exctraction and enhance segmentation interpretation
Merge branch 'master' of github.com:pradal/scanalea

* 'master' of github.com:pradal/scanalea:
  Update ChangeLog.txt
Merge pull request #8 from pradal/master

MTG computation from segmentation - stage 2