Add Example for Start video in specific seconds of the time track

[Celso-Ricardo]

The flutter_meedu_videoplayer is the best and more beginner friendly flutter video player right now, and that is because the examples shown in the examples section of this repo https://github.com/zezo357/flutter_meedu_videoplayer/tree/master/package/example

I was browsing through it, and I kind of missed this example. actually that is something that i need for my video player app, I keep track of the video progress, and when the app is closed and opened again, the video starts from where it stopped in the previous session.

if I find a way of doing it, maybe I can submit it as a pull request

[abdelaziz-mahdy]

Well you can submit a pull request for this as an example that will be great,

For my case I did the same logic using SQLite db