Feature/use hcaptcha if bot (#430)

* Handle hcaptch required identity response

* Refactor iframe component for captcha and webauthn

* Send captcha token to server

* Add captcha callback

* Clear captcha state

* Remove captcha storage

* linter fixes

* Rename iframe components to include IFrame

* Remove callback in favor of extenting submit

* Limit publickey credentials access

* Use captcha bypass token to bypass captcha for twofactor auth flows

* Linter fixes

* Set iframe version in components

common/src/misc/captcha_iframe.ts

@@ -0,0 +1,22 @@
+import { I18nService } from '../abstractions/i18n.service';
+import { IFrameComponent } from './iframe_component';
+
+export class CaptchaIFrame extends IFrameComponent {
+    constructor(win: Window, webVaultUrl: string,
+        private i18nService: I18nService, successCallback: (message: string) => any, errorCallback: (message: string) => any,
+        infoCallback: (message: string) => any) {
+        super(win, webVaultUrl, 'captcha-connector.html', 'hcaptcha_iframe', successCallback, errorCallback, (message: string) => {
+            const parsedMessage = JSON.parse(message);
+            if (typeof (parsedMessage) !== 'string') {
+                this.iframe.height = (parsedMessage.height).toString();
+                this.iframe.width = (parsedMessage.width).toString();
+            } else {
+                infoCallback(parsedMessage);
+            }
+        });
+    }
+
+    init(siteKey: string): void {
+        super.initComponent(this.createParams({ siteKey: siteKey, locale: this.i18nService.translationLocale }, 1));
+    }
+}