Add extracted source directory and README navigation

extracted-source/node_modules/@aws-sdk/util-format-url/dist-cjs/index.js

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+'use strict';
+
+var querystringBuilder = require('@smithy/querystring-builder');
+
+function formatUrl(request) {
+    const { port, query } = request;
+    let { protocol, path, hostname } = request;
+    if (protocol && protocol.slice(-1) !== ":") {
+        protocol += ":";
+    }
+    if (port) {
+        hostname += `:${port}`;
+    }
+    if (path && path.charAt(0) !== "/") {
+        path = `/${path}`;
+    }
+    let queryString = query ? querystringBuilder.buildQueryString(query) : "";
+    if (queryString && queryString[0] !== "?") {
+        queryString = `?${queryString}`;
+    }
+    let auth = "";
+    if (request.username != null || request.password != null) {
+        const username = request.username ?? "";
+        const password = request.password ?? "";
+        auth = `${username}:${password}@`;
+    }
+    let fragment = "";
+    if (request.fragment) {
+        fragment = `#${request.fragment}`;
+    }
+    return `${protocol}//${auth}${hostname}${path}${queryString}${fragment}`;
+}
+
+exports.formatUrl = formatUrl;

extracted-source/node_modules/@aws-sdk/util-format-url/node_modules/@smithy/querystring-builder/dist-cjs/index.js

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+'use strict';
+
+var utilUriEscape = require('@smithy/util-uri-escape');
+
+function buildQueryString(query) {
+    const parts = [];
+    for (let key of Object.keys(query).sort()) {
+        const value = query[key];
+        key = utilUriEscape.escapeUri(key);
+        if (Array.isArray(value)) {
+            for (let i = 0, iLen = value.length; i < iLen; i++) {
+                parts.push(`${key}=${utilUriEscape.escapeUri(value[i])}`);
+            }
+        }
+        else {
+            let qsEntry = key;
+            if (value || typeof value === "string") {
+                qsEntry += `=${utilUriEscape.escapeUri(value)}`;
+            }
+            parts.push(qsEntry);
+        }
+    }
+    return parts.join("&");
+}
+
+exports.buildQueryString = buildQueryString;

extracted-source/node_modules/@aws-sdk/util-format-url/node_modules/@smithy/querystring-builder/node_modules/@smithy/util-uri-escape/dist-cjs/index.js

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+'use strict';
+
+const escapeUri = (uri) => encodeURIComponent(uri).replace(/[!'()*]/g, hexEncode);
+const hexEncode = (c) => `%${c.charCodeAt(0).toString(16).toUpperCase()}`;
+
+const escapeUriPath = (uri) => uri.split("/").map(escapeUri).join("/");
+
+exports.escapeUri = escapeUri;
+exports.escapeUriPath = escapeUriPath;