DMI Stochastic Toltecas

Modification of DMI Stochastic Indicator created by @usgears


- Added Crossing Up/Down Text Signal
- Added Crossing Up/Down Arrow Signal
- Added Crossing Up/Down Darts Signal
- Added Midline level
- Custom settings for oversold, midline and overbought levels to select a solid, dotted, or dashed line style.
- Added Background Color