use incremental linking in debug mode
Merge branch 'master' of https://github.com/voxelinc/voxellancer into windows_link_time_reduction
Merge branch 'master' of https://github.com/voxelinc/voxellancer into windows_link_time_reduction

Conflicts:
	cmake/PlatformWindowsMSVC.cmake
Merge pull request #470 from voxelinc/windows_link_time_reduction

use incremental linking in debug mode