- fixed linking of optimized targets

Undefined symbols for architecture x86_64:
  "AActor::Vec3Angle(double, TAngle<double>, double, bool)", referenced from:
      Net_DoCommand(int, unsigned char**, int) in d_net.cpp.o

src/d_net.cpp

@@ -70,6 +70,7 @@
 #include "a_keys.h"
 #include "intermission/intermission.h"
 #include "g_levellocals.h"
+#include "actorinlines.h"
 #include "events.h"
 #include "i_time.h"
 #include "vm.h"