feat(SW-187): Footer data from contentstack

lib/graphql/Fragments/Footer/AppDownloads.graphql

@@ -0,0 +1,12 @@
+fragment AppDownloads on Footer {
+  app_downloads {
+    title
+    links {
+      type
+      href {
+        href
+        title
+      }
+    }
+  }
+}

lib/graphql/Fragments/Footer/Refs/MainLinks.graphql

@@ -0,0 +1,18 @@
+fragment MainLinksRef on Footer {
+  __typename
+  main_links {
+    pageConnection {
+      edges {
+        node {
+          __typename
+          ...LoyaltyPageRef
+          ...ContentPageRef
+          ...AccountPageRef
+        }
+      }
+    }
+  }
+  system {
+    ...System
+  }
+}

lib/graphql/Fragments/Footer/Refs/SecondaryLinks.graphql

@@ -0,0 +1,20 @@
+fragment SecondaryLinksRef on Footer {
+  __typename
+  secondary_links {
+    links {
+      pageConnection {
+        edges {
+          node {
+            __typename
+            ...LoyaltyPageRef
+            ...ContentPageRef
+            ...AccountPageRef
+          }
+        }
+      }
+    }
+  }
+  system {
+    ...System
+  }
+}