Split jslib into multiple modules (#363)

* Split jslib into multiple modules

electron/src/services/electronRendererSecureStorage.service.ts

@@ -0,0 +1,30 @@
+import { ipcRenderer } from 'electron';
+
+import { StorageService } from 'jslib-common/abstractions/storage.service';
+
+export class ElectronRendererSecureStorageService implements StorageService {
+    async get<T>(key: string): Promise<T> {
+        const val = ipcRenderer.sendSync('keytar', {
+            action: 'getPassword',
+            key: key,
+        });
+        return Promise.resolve(val != null ? JSON.parse(val) as T : null);
+    }
+
+    async save(key: string, obj: any): Promise<any> {
+        ipcRenderer.sendSync('keytar', {
+            action: 'setPassword',
+            key: key,
+            value: JSON.stringify(obj),
+        });
+        return Promise.resolve();
+    }
+
+    async remove(key: string): Promise<any> {
+        ipcRenderer.sendSync('keytar', {
+            action: 'deletePassword',
+            key: key,
+        });
+        return Promise.resolve();
+    }
+}