feat(SW-186): implemented queries and typings for top_link inside header query

lib/graphql/Query/Header.graphql

@@ -0,0 +1,66 @@
+#import "../Fragments/Refs/System.graphql"
+
+#import "../Fragments/PageLink/ContentPageLink.graphql"
+#import "../Fragments/PageLink/LoyaltyPageLink.graphql"
+
+query GetHeader($locale: String!) {
+  all_header(limit: 1, locale: $locale) {
+    items {
+      top_link {
+        is_external_link
+        open_in_new_tab
+        page_link {
+          link_title
+          linkConnection {
+            edges {
+              node {
+                ...LoyaltyPageLink
+                ...ContentPageLink
+              }
+            }
+          }
+        }
+        external_link {
+          href
+          title
+        }
+      }
+    }
+  }
+}
+
+query GetHeader2($locale: String!) {
+  all_header(limit: 1, locale: $locale) {
+    items {
+      top_link {
+        external_link {
+          href
+          title
+        }
+        is_external_link
+        open_in_new_tab
+        page_link {
+          link_title
+          linkConnection {
+            edges {
+              node {
+                ...LoyaltyPageLink
+                ...ContentPageLink
+              }
+            }
+          }
+        }
+      }
+    }
+  }
+}
+
+query GetHeaderRef($locale: String!) {
+  all_header(limit: 1, locale: $locale) {
+    items {
+      system {
+        ...System
+      }
+    }
+  }
+}