Tradingview-scraper

- Fix bug while fetching ADX+DI indicators
- Add timeframe param for streamer export data

**Full Changelog**: https://github.com/mnwato/tradingview-scraper/compare/0.4.7...0.4.8

- Fixed bug undefined RealTimeData

- Add value argument to specify calander fields
- Add Streamer class for getting OHLCV and indicator simultaneously
- Integrate realtime data and historical exporter into Streamer class

- Add calander (Dividend, Earning)
- Make requirements non-explicit
- Lint fix
- Add tests
- Add reconnection method for realtime price scraper

- Update exchange list
- Introduced real-time price streaming

Add News Scraper

1- Scrape news headline from providers/symbols
2- Scrape news page content