To C++ pg data get, fetch and check (#2504)

* [C++] template to get sql query data
* [C++] fetch part from the *_input files
* [C++/C] get_ part from the *_input files
* [lint]:broom: removing previousely splitted files (into getters & fetchers)
* [C->C++] get_check_data is used & compiled by c++
* [C++] Adjusted to C++ and reorganized dev-doc
* [C] new function to generate error on postgres
* [C++/C] postgres_connection can be included on C++ files
* [dev-doc] adjusted comment on how to use pgr_get_edges
* [build] adjusting the build to new files
* [C->C++] information about columns processed on c++
* [C->C++] adjusting info_t to changes
* [allpairs] Adjusting code to changes
* [alpha_shape] Adjusting code to changes
* [astar] Adjusting code to changes
* [bdAstar] Adjusting code to changes
* [bdDijkstra] Adjusting code to changes
* [bellman_ford] Adjusting code to changes
* [breadthFirstSearch] Adjusting code to changes
* [chinese] Adjusting code to changes
* [circuits] Adjusting code to changes
* [coloring] Adjusting code to changes
* [components] Adjusting code to changes
* [contraction] Adjusting code to changes
* [dagShortestPath] Adjusting code to changes
* [dijkstra] Adjusting code to changes
* [dominator] Adjusting code to changes
* [driving_distance] Adjusting code to changes
* [ksp] Adjusting code to changes
* [lineGraph] Adjusting code to changes
* [max_flow] Adjusting code to changes
* [mincut] Adjusting code to changes
* [ordering] Adjusting code to changes
* [pickDeliver] Adjusting code to changes
* [planar] Adjusting code to changes
* [spanningTree] Adjusting code to changes
* [topologicalSort] Adjusting code to changes
* [transitiveClosure] Adjusting code to changes
* [traversal] Adjusting code to changes
* [trsp] Adjusting code to changes
* [tsp] Adjusting code to changes
* [withPoints] Adjusting code to changes
* [lint]:broom: removing unused files
* [info_t] refining
* [pgdata_getters] using namespace directives
* [get_data] documenting & refining
* [pgdata_fetchers] refining
* [get_check_data] using namespace directives
* [CI] removing windows CI

include/c_common/e_report.h

@@ -116,6 +116,10 @@ pgr_notice2(
 void
 pgr_error(char* error_msg);
 
+/* @brief throws postgres error when first string is not null */
+void throw_error(char*, char*);
+
+
 /*! @brief error with hint
  *
  *  ~~~~{.c}