create Room Database
Create or get a RoomDatabase, it will be created in the Main app storage and will persist if the module is uninstalled, we suggest to put the database reference inside an object for easier access through the module, this method can only be used inside of onModuleInitialize.
Return
The reference of the created/gotten Database
Parameters
name
The name of the database, the package name of the Module is used to create an unique name
clazz
The class of the Database