HOFF-160: Create postcode lookup component

.gitignore

@@ -16,3 +16,4 @@ coverage
 build/Release
 node_modules
 .emails
+.vscode

components/index.js

@@ -2,6 +2,7 @@
 
 module.exports = {
   addressLookup: require('./address-lookup'),
+  postcodeLookup: require('./postcode-lookup'),
   clearSession: require('./clear-session'),
   combineAndLoopFields: require('./combine-and-loop-fields'),
   date: require('./date'),

components/postcode-lookup/defaults.js

@@ -0,0 +1,31 @@
+/* eslint max-len: 0, no-process-env: 0 */
+
+'use strict';
+
+module.exports = {
+  CANT_FIND: 'I cannot find the correct address',
+  CHANGE: 'Change postcode',
+  SEARCH_BY_POSTCODE: 'Search address by postcode',
+  POSTCODE_HEADING: 'What is your UK postcode?',
+  POSTCODE_LABEL: 'Postcode',
+  POSTCODE_HINT: 'Enter a full UK postcode, for example AA3 1AB',
+  ADDRESS_LOOKUP_HEADING: 'Select the main applicant’s address',
+  MANUAL_ADDRESS_HEADING: 'Enter the main applicant’s address',
+  MANUAL_ADDRESS_PARAGRAPH: 'This must match the applicant’s address in Home Office records.',
+  SEARCH_ERROR_HEADING: 'Sorry, there is a problem with the postcode search',
+  SELECT_LABEL: 'Select the address',
+  ADDRESS_LINE_1_LABEL: 'Address line 1',
+  ADDRESS_LINE_2_LABEL: 'Address line 2 (optional)',
+  TOWN_OR_CITY_LABEL: 'Town or city',
+  POSTCODE_MANUAL_LABEL: 'Postcode',
+  POSTCODE_ERROR: {
+    'error-heading': 'Sorry, there is a problem with the postcode search',
+    'lookup-problem-title': 'Address lookup problem - GOV.UK'
+  },
+  NO_ADDRESS_HEADING: 'No address found',
+  ENTER_MANUALLY: 'Enter address manually',
+  ADDRESS_LOOKUP_SEARCH_TITLE: 'Postcode lookup search - GOV.UK',
+  ADDRESS_LOOKUP_TITLE: 'Address lookup - GOV.UK',
+  ADDRESS_DETAILS_TITLE: 'Address details - GOV.UK',
+  ADDRESS_LOOKUP_PROBLEM_TITLE: 'Address lookup problem - GOV.UK'
+};