ENH: add timelapse pos picker

1. refine code structure
2. prevent moving tool head between camera and object
3. consider raft layer

jira: NONE

Signed-off-by: xun.zhang <xun.zhang@bambulab.com>
Change-Id: Ic0004791bfd4036d4323045a041709d861e5c8d0
(cherry picked from commit 7dc269f99473421162ad89c555bfac7ace0e9a6b)

src/libslic3r/GCode.hpp

@@ -27,6 +27,8 @@
 // ORCA: post processor below used for Dynamic Pressure advance
 #include "GCode/AdaptivePAProcessor.hpp"
 
+#include "GCode/TimelapsePosPicker.hpp"
+
 #include <memory>
 #include <map>
 #include <set>
@@ -523,6 +525,7 @@ private:
     Wipe                                m_wipe;
     AvoidCrossingPerimeters             m_avoid_crossing_perimeters;
     RetractWhenCrossingPerimeters       m_retract_when_crossing_perimeters;
+    TimelapsePosPicker                  m_timelapse_pos_picker;
     bool                                m_enable_loop_clipping;
     //resonance avoidance
     bool                                m_resonance_avoidance; 
@@ -607,6 +610,8 @@ private:
 
     Print *m_print{nullptr};
 
+    std::set<const PrintObject*> m_printed_objects;
+
     // Processor
     GCodeProcessor m_processor;