container: lib_reports: optimize writes by forking

- Decreases real time in multicore container environments.
  * Given the nature of the writer, there should be no race conditions.

container/src/finance/lib/internal/lib_reports.bash

@@ -342,12 +342,13 @@ function lib_reports::__reports()
 
       lib_utils::print_custom "    \e[32m├─\e[34m\e[1;3m ${_new_echo}\e[0m\n"
 
-      lib_reports::__reports_write \
+      (lib_reports::__reports_write \
         "$_type" \
         "$_new_desc" \
         "$_new_base_file" \
-        "${_new_opts[@]}"
+        "${_new_opts[@]}") &
     done
+    wait
     lib_utils::print_custom "    \e[32m│\e[0m\n"
   done