M11.1 Building completion puts non-candidate in new group

• Completion includes all points near already confirmed building, not only candidates. The non-candidates will form a new group (ID=1) and groups identified in BuildingIdentification task will be shifted to start at ID=2.
• Identification will ignore already confirmed points, non-candidates, and the points in the group of ID=1.

As a consequence, Building identification somehow starts within task Building Completion, as the first group of suggested building is found withing Building Completion.

The doc illustrates this is in a nice png.

In addition:

• relaxation factor of threshold is removed for these tasks, as it was not used.
• Dimensions Normal, Deviation, Distance are protected from deletion, and saved as Unsigned Integers for now.

What's Changed

• M11 Larger scope building completion and identification by @CharlesGaydon in #78
• M11.1 v1.9.1 completion as a group by @CharlesGaydon in #79
• M11.1 v1.9.2 Keep extra-dimensions Distance and Normal by @CharlesGaydon in #80
• Add Deviation to the list of protected LAS dims by @CharlesGaydon in #81

Full Changelog: M10.0...M11.1