Forex Sessions by EF with DST

Based on the well known existing Sessions script
Changes:
- 3x daylight savings checkboxes for Australia, London and New York. No more manual script modifications when DST is on/off, just check/uncheck and go!
- sessions re-ordered to trading day
- 1 hour pre-market zones added (there is none for Australia as that is the start of the Forex day)
- modified transparency settings to make it more subtle
- default on are Asia open and New York open + their respective 1 hour Pre-Market

Notes de version:

Modified script to only show when intraday and close period extended to 15min so it shows up on 15min timeframe