clean-up guidance code/code in general

removes duplicated includes
removes unused includes
eliminates dedicated toolkits that resulted in circular dependencies
moves functionality close to data, where possible

src/extractor/guidance/intersection.cpp

@@ -1,5 +1,4 @@
 #include "extractor/guidance/intersection.hpp"
-#include "extractor/guidance/toolkit.hpp"
 
 #include <boost/range/adaptor/transformed.hpp>
 #include <boost/range/algorithm/find_if.hpp>
@@ -10,6 +9,8 @@
 #include <functional>
 #include <limits>
 
+using osrm::util::angularDeviation;
+
 namespace osrm
 {
 namespace extractor