introduce tracking per thread, add working test

include/mg_procedure.h

@@ -115,9 +115,31 @@ void mgp_global_free(void *p);
 /// State of the graph database.
 struct mgp_graph;
 
+/// Allocations are tracked only for master thread. If new threads are spawned
+/// inside procedure, by calling following function with thread id
+/// you can start tracking allocations for that thread too. This
+/// is important if you need query memory limit to work
+/// for given procedure or per procedure memory limit.
 enum mgp_error mgp_track_thread_allocations(struct mgp_graph *graph, const char *thread_id);
 
-enum mgp_error mgp_untrack_thread_allocations(struct mgp_graph *graph, const char *);
+/// Once allocations are tracked for custom thread, you need to stop tracking allocations
+/// for given thread, before thread finishes with execution, or is detached.
+/// Otherwise it might result in slowdown of system due to unnecessary tracking of
+/// allocations.
+enum mgp_error mgp_untrack_thread_allocations(struct mgp_graph *graph, const char *thread_id);
+
+/// Allocations are tracked only for master thread. If new threads are spawned
+/// inside procedure, by calling following function
+/// you can start tracking allocations for current thread too. This
+/// is important if you need query memory limit to work
+/// for given procedure or per procedure memory limit.
+enum mgp_error mgp_track_current_thread_allocations(struct mgp_graph *graph);
+
+/// Once allocations are tracked for current thread, you need to stop tracking allocations
+/// for given thread, before thread finishes with execution, or is detached.
+/// Otherwise it might result in slowdown of system due to unnecessary tracking of
+/// allocations.
+enum mgp_error mgp_untrack_current_thread_allocations(struct mgp_graph *graph);
 ///@}
 
 /// @name Operations on mgp_value