Implements clamping for creation of Planes using the dragging tool.

Implements clamping while creating the plane. Currently clamping is hardcoded to 15° or π/12. Clamping has to be set using setClamping(bool) by the calling site. Changes implemented in QtPlaneSelect::setPlaneAndSize()

added 4 commits

• 882e4577 - removes registration for keys
• bd7edb48 - clang format
• 0e2d3bc1 - adds setClamping
• 374462c6 - removes unnecessary include

Compare with previous version

Please remove the clang format file from this commit.

added 1 commit

• 34c647c1 - Cleanup clang-format

Compare with previous version

added 1 commit

• 9c91c528 - Cleanup clang-format

Compare with previous version

mentioned in commit adb12339

merged