feat(shadow_pricing): use 'work_segment' for workplace instead of the default 'income_segment'

Author: asiripanich

activitysim/abm/tables/shadow_pricing.py

@@ -64,13 +64,7 @@
 default_segment_to_name_dict = {
     # model_selector : persons_segment_name
     "school": "school_segment",
-    "workplace": "income_segment",
-}
-
-default_segment_to_name_dict = {
-    # model_selector : persons_segment_name
-    "school": "school_segment",
-    "workplace": "income_segment",
+    "workplace": "work_segment",
 }