change the API naming convention to improve readability of both code
and documentation. The new convention consists in
prefix_object_operation instead of previously used of prefix_op_object
this will make search through documentation and or code by object
a lot easier.

- slist_init -
- slist_new_node -to- slist_node_new
- slist_print_node -to- slist_node_print
- slist_new_list -to- slist_list_new
- slist_delete_node -to- slist_node_delete
- slist_delete_list -to- slist_list_delete
- slist_push_node -to- slist_node_push
- slist_append_nodee -to- slist_node_append
- slist_pop_node -to- slist_node_pop
- slist_find_node -to- slist_node_find
- slist_find_index_of -
- slist_remove_node -to- slist_node_remove
- slist_remove_node_at -to- slist_node_remove_at
- slist_foreach_node -to- slist_node_foreach
- slist_delete_all_nodes -to- slist_nodes_delete_all
- slist_reverse_list -to- slist_list_reverse
- slist_get_size -
- slist_push_list -to- slist_list_push
- slist_append_list -to- slist_list_append
- slist_split_list -to- slist_list_split
- slist_split_list_at -to- slist_list_split_at

- dlist_init -
- dlist_new_list -to- dlist_list_new
- dlist_new_node -to- dlist_node_new
- dlist_print_node -to- dlist_node_print
- dlist_delete_node -to- dlist_node_delete
- dlist_delete_list -to- dlist_list_delete
- dlist_push_node -to- dlist_node_push
- dlist_append_node -to- dlist_node_append
- dlist_pop_node -to- dlist_node_pop
- dlist_find_node -to -dlist_node_find
- dlist_find_index_of -
- dlist_remove_node -to- dlist_node_remove
- dlist_remove_node_at -to- dlist_node_remove_at
- dlist_foreach_node -to- dlist_node_foreach
- dlist_delete_all_nodes -to- dlist_nodes_delete_all
- dlist_reverse_list -to- dlist_list_reverse
- dlist_get_size -
- dlist_push_list -to- dlist_list_push
- dlist_append_list -to- dlist_list_append
- dlist_split_list -to- dlist_list_split
- dlist_split_list_at -to- dlist_list_split_at
since the API was changed to match prefix_object_operation
the function that acted on slist_delete_all_nodes and
dlist_delete_all_nodes would be incorrect, since the object they
act on is slist or dlist and not the node, therefor the function
is now slist_list_delete_all_nodes and dlist_list_delete_all_nodes
respectively.