adding missing standard headers functional, map and, vector

some small documentaion updates

Author: matthiasrichter

Algorithm/include/Algorithm/HeaderStack.h

@@ -107,11 +107,11 @@ void dispatchHeaderStackCallback(PtrType ptr,
  * type is in the stack, its content will be assigned to the variable.
  *
  * Usage:
+ *   DataHeader dataheader;
+ *   TriggerHeader triggerheader
  *   parseHeaderStack(ptr, size,
- *                   MyHeader(),
- *                   [] (const auto & h) {
- *                     // do something with h
- *                   }
+ *                    dataheader,
+ *                    triggerheader
  */
 template<
   typename PtrType,

Algorithm/include/Algorithm/Parser.h

@@ -16,6 +16,9 @@
 /// @since  2017-09-20
 /// @brief  Utilities for parsing of data sequences
 
+#include <functional>
+#include <vector>
+
 namespace o2 {
 
 namespace algorithm {

Algorithm/include/Algorithm/TableView.h

@@ -16,6 +16,9 @@
 /// @since  2017-09-21
 /// @brief  Container class for multiple sequences of data wrapped by markers
 
+#include <vector>
+#include <map>
+
 namespace o2 {
 
 namespace algorithm {