Adapted the speed meassurement script

.coveragerc

@@ -4,6 +4,7 @@ source =
     src
 omit = */kibot/docopt.py
        */kibot/mcpy/*
+       */kibot/mcpyrate/*
 
 [report]
 exclude_lines =

experiments/speed/run.sh

@@ -1,2 +1,2 @@
-#!/bin/sh
+#!/bin/bash
 time perl test.pl

experiments/speed/test.pl

@@ -1,4 +1,4 @@
 for ($i=0; $i<100; $i++)
    {
-    system("src/kiplot -b tests/board_samples/good-project.kicad_pcb -c tests/yaml_samples/simple_position_csv.kiplot.yaml -d pp");
+    system("../../src/kiplot -b ../../tests/board_samples/kicad_5/good-project.kicad_pcb -c ../../tests/yaml_samples/simple_position_csv.kibot.yaml -d pp");
    }

kibot/out_bom.py

@@ -37,14 +37,14 @@ class BoMColumns(Optionable):
     def __init__(self):
         super().__init__()
         self._unkown_is_error = True
-        with step_expansion:
-            with document:
-                self.field = ''
-                """ Name of the field to use for this column """
-                self.name = ''
-                """ Name to display in the header. The field is used when empty """
-                self.join = Optionable
-                """ [list(string)|string=''] List of fields to join to this column """
+        # with step_expansion:
+        with document:
+            self.field = ''
+            """ Name of the field to use for this column """
+            self.name = ''
+            """ Name to display in the header. The field is used when empty """
+            self.join = Optionable
+            """ [list(string)|string=''] List of fields to join to this column """
 
     def config(self):
         super().config()