[PM-328] Move common/importer to libs/importer (tools-migration) (#5060)

* Create and register new libs/importer

Create package.json
Create tsconfig
Create jest.config
Extend shared and root tsconfig and jest.configs
Register with eslint

* Move importer-related files to libs/importer

* Move importer-spec-related files to libs/importer

Move import.service.spec

* Update package-lock.json

* Set CODEOWNERS for new libs/importer

* Register libs/importer with cli and fix imports

* Register libs/importer with web and fix imports

* Move importOption into models

Rename importOptions to import-options

* Fix linting issues after updating prettier

* Only expose necessary files from libs/importer

Fix tsconfig files
- Removes the trailing /index on imports in web/cli

As the spec-files no longer can access the internals via @bitwarden/importer they import by path (../src/importers)

* Add barrel files to vendors with more than one importer

libs/importer/src/importers/keepassx-csv-importer.ts

@@ -0,0 +1,44 @@
+import { ImportResult } from "../models/import-result";
+
+import { BaseImporter } from "./base-importer";
+import { Importer } from "./importer";
+
+export class KeePassXCsvImporter extends BaseImporter implements Importer {
+  parse(data: string): Promise<ImportResult> {
+    const result = new ImportResult();
+    const results = this.parseCsv(data, true);
+    if (results == null) {
+      result.success = false;
+      return Promise.resolve(result);
+    }
+
+    results.forEach((value) => {
+      if (this.isNullOrWhitespace(value.Title)) {
+        return;
+      }
+
+      value.Group =
+        !this.isNullOrWhitespace(value.Group) && value.Group.startsWith("Root/")
+          ? value.Group.replace("Root/", "")
+          : value.Group;
+      const groupName = !this.isNullOrWhitespace(value.Group) ? value.Group : null;
+      this.processFolder(result, groupName);
+
+      const cipher = this.initLoginCipher();
+      cipher.notes = this.getValueOrDefault(value.Notes);
+      cipher.name = this.getValueOrDefault(value.Title, "--");
+      cipher.login.username = this.getValueOrDefault(value.Username);
+      cipher.login.password = this.getValueOrDefault(value.Password);
+      cipher.login.uris = this.makeUriArray(value.URL);
+      this.cleanupCipher(cipher);
+      result.ciphers.push(cipher);
+    });
+
+    if (this.organization) {
+      this.moveFoldersToCollections(result);
+    }
+
+    result.success = true;
+    return Promise.resolve(result);
+  }
+}