improve receipt/details reports and implement number formatting

1) eager load reports for receipt/details
2) introduce number_format lookups to replace print_settings for number formatting
3) implement NumberFormattable concern, reference number_format lookups or print_settings if not exist, to get number format settings and number formatting
4) replace rails NumberHelper.number_with_precision with NumberFormattable.number_format hopefully to reduce overhead, formatting numbers for huge lists of data

db/seeds.rb

@@ -107,6 +107,11 @@ units = Lookup.create([{lookup_type:'unit', name: 'PCS', value: 'pcs'},
 # Country
 countries =  Lookup.create({lookup_type:'country', name: 'Japan', value: 'Japan'})
 
+# number formats
+number_formats = Lookup.create([{lookup_type: 'number_format', name: 'precision', '2'},
+                                {lookup_type: 'number_format', name: 'delimiter', ','},
+                                {lookup_type: 'number_format', name: 'strip_insignificant_zeros', '0'}])
+
 # Default CUSTOMER
 customer = Customer.create({name:"WALK-IN", email: "cus1@customer.com", contact_no:"000000000",card_no:"000", customer_type:"Dinein", tax_profiles:["2", "1"]})
 customer2 = Customer.create({name:"TAKEAWAY", email: "cus2@customer.com", contact_no:"111111111",card_no:"111", customer_type:"Takeaway", tax_profiles:["1"]})
@@ -133,7 +138,7 @@ product = Account.create({title: "Product", account_type: "2"})
 
 # YGN BBQ
 # person = Account.create({title: "Person", account_type: "3"})
-# END 
+# END
 
 #Default Menu Options
 menu_options = MenuItemOption.create([{option_type: "Spicy", name: "Less Spicy", value: "less_spicy"},{option_type: "Spicy", name: "Spicy", value: "spicy"},{option_type: "Spicy", name: "Super Spicy", value: "super_spicy"}])