[ Fix ] UOM Conversion fix (#14768)

* increase precision for conversion value

* inverse the conversion data

* update uom data

* rectify conversion logic according to inversion of values

* rectify test case for uom conversion

* patch improv to correct conversion data

erpnext/setup/doctype/uom_conversion_factor/uom_conversion_factor.json

@@ -163,7 +163,7 @@
    "length": 0, 
    "no_copy": 0, 
    "permlevel": 0, 
-   "precision": "", 
+   "precision": "9",
    "print_hide": 0, 
    "print_hide_if_no_value": 0, 
    "read_only": 0, 
@@ -186,7 +186,7 @@
  "issingle": 0, 
  "istable": 0, 
  "max_attachments": 0, 
- "modified": "2018-06-05 12:50:02.648100", 
+ "modified": "2018-06-29 15:35:34.580831",
  "modified_by": "Administrator", 
  "module": "Setup", 
  "name": "UOM Conversion Factor", 
@@ -220,5 +220,6 @@
  "sort_field": "modified", 
  "sort_order": "DESC", 
  "track_changes": 1, 
- "track_seen": 0
+ "track_seen": 0,
+ "track_views": 0
 }

erpnext/setup/setup_wizard/data/uom_data.json

@@ -261,7 +261,11 @@
 		"must_be_whole_number": 0
 	},
 	{
-		"uom_name": "Hundredweight",
+		"uom_name": "Hundredweight (UK)",
+		"must_be_whole_number": 0
+	},
+	{
+		"uom_name": "Hundredweight (US)",
 		"must_be_whole_number": 0
 	},
 	{
@@ -789,7 +793,7 @@
 		"must_be_whole_number": 0
 	},
 	{
-		"uom_name": "Pound Cubic Yard",
+		"uom_name": "Pound/Cubic Yard",
 		"must_be_whole_number": 0
 	},
 	{