PP HL Strategy

Preliminary version for testing--entries only.

V7: Released.

Versionshinweise:

V8: Entry detection based on last bar's limit.

Versionshinweise:

V39: Removed Pine position_size--rely on built-in strategy.position size; Implemented rudimentary SL and TSL based on prior candle extremes; fixed entry level bug.

Versionshinweise:

V47: SL bug fix; added absolute SL; added PT; added conditionals to BE.

Versionshinweise:

V72: Added contract size input; added risk statistics; added PT plotted line; corrected entry detection logic.

Versionshinweise:

V89: Restore internal position_size logic; adhere to historical assumptions found in www.tradingview.com/wiki/Strategies

Versionshinweise:

V104: Corrected stop level bug under some conditions; added entry level plot; added distance from entry to stop level plot.

Versionshinweise:

V124: Added PP H/L TSL; added entry level TSL; tweaked position size treatment; provisioned for entry occurring immediately after a PT exit.

Versionshinweise:

V125: Corrected textual typo in the name of TSL-PP H/L; ensured PP additional % input is used when trading shorts.

Versionshinweise:

V126: Ensured current-bar tighter stops are retained.

Versionshinweise:

V141: Added PP H/L filter.

Versionshinweise:

V142: stop enable bug fix for BE, PP TSL.