1. In auto arranging bed temp can be higher than vitrify temp by no more than 15 degrees.
2. In by-object printing we use max radius for clearance
3. Add P1P max radius
Change-Id: If595f3e19fd74f6f36d2f394edbb835c413cc800
(cherry picked from commit 2af42420ad3770f0728adb583082600544519a58)