Add:Start adding new nosql database plugin for android

plugins/db.js

@@ -0,0 +1,29 @@
+import { registerPlugin } from '@capacitor/core';
+
+const DbManager = registerPlugin('DbManager');
+
+class DbService {
+  constructor() { }
+
+  save(db, key, value) {
+    return DbManager.saveFromWebview({ db, key, value }).then(() => {
+      console.log('Saved data', db, key, JSON.stringify(value))
+    }).catch((error) => {
+      console.error('Failed to save data', error)
+    })
+  }
+
+  load(db, key) {
+    return DbManager.loadFromWebview({ db, key }).then((data) => {
+      console.log('Loaded data', db, key, JSON.stringify(data))
+      return data
+    }).catch((error) => {
+      console.error('Failed to load', error)
+      return null
+    })
+  }
+}
+
+export default ({ app, store }, inject) => {
+  inject('db', new DbService())
+}