Ichimoku ATR Oscillator

// An oscillator that visualizes Ichimoku trend line distances in terms of ATR.

// Public Domain
// By JollyWizard

リリースノート:

* Chikou Span distance is now relative to the closest candle price (High or Low). Chikou inside historical price = 0 ATR.

リリースノート:

* Updated all trend line distances to be based on closest price, with trend line inside the candle as 0 ATR.

リリースノート:

* Made closest price mode optional (currently only one toggle for all lines.
* Bugfix for current / cloud distances.
* Reworked code to describe assumptions to prevent nerd math bugs.