Add node modules and compiled JavaScript from main

node_modules/istanbul-reports/lib/html-spa/src/fileBreadcrumbs.js

@@ -0,0 +1,31 @@
+const React = require('react');
+
+module.exports = function FileBreadcrumbs({ fileFilter = '', setFileFilter }) {
+    const parts = fileFilter.split('/');
+    const breadcrumbs = [
+        {
+            path: '',
+            name: 'all files'
+        },
+        ...parts.map((part, i) => ({
+            path: parts.slice(0, i + 1).join('/'),
+            name: part
+        }))
+    ];
+
+    return breadcrumbs.map(({ path, name }) =>
+        path === fileFilter ? (
+            name
+        ) : (
+            <>
+                <a
+                    href="javascript:void(0)"
+                    onClick={() => setFileFilter(path)}
+                >
+                    {name}
+                </a>
+                /
+            </>
+        )
+    );
+};