Add Vortex Indicator implementation and documentation

- Implemented Vortex Indicator in Vortex.cs, including calculation logic and event handling.
- Added detailed documentation for Vortex Indicator in Vortex.md, covering historical context, algorithm, outputs, and trading interpretation.
- Updated oscillators index to include TTM Wave indicator.
- Added TTM Wave documentation with algorithm and trading interpretation.
- Updated reversals index to include TTM Scalper Alert indicator.
- Added TTM Scalper Alert documentation with algorithm and trading strategy.
- Updated NDepend badges to reflect increased code metrics (classes, methods, lines of code, public types, comments, and complexity).

lib/dynamics/ttm_squeeze/TtmSqueeze.md

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+# TTM_SQUEEZE: TTM Squeeze
+
+> **Pending Implementation** - Placeholder for John Carter's TTM Squeeze indicator
+
+## Historical Context
+
+John Carter developed TTM Squeeze as his signature volatility breakout indicator, popularized through his book *Mastering the Trade* and thinkorswim platform. The indicator combines Bollinger Bands and Keltner Channels to identify low-volatility "squeeze" conditions that typically precede explosive price moves.
+
+## Algorithm
+
+### Squeeze Detection
+- **Squeeze On (●):** Bollinger Bands inside Keltner Channel
+- **Squeeze Off (○):** Bollinger Bands outside Keltner Channel
+
+### Momentum Histogram
+Linear regression of price deviation from 20-period midline:
+```
+midline = (Highest(20) + Lowest(20)) / 2
+momentum = LinReg(close - midline, 20)
+```
+
+### Color Coding
+- **Cyan:** Momentum rising above zero
+- **Blue:** Momentum falling but above zero
+- **Red:** Momentum falling below zero
+- **Yellow:** Momentum rising but below zero
+
+## Default Parameters
+
+| Parameter | Value | Description |
+|:----------|:------|:------------|
+| BB Length | 20 | Bollinger Band period |
+| BB Mult | 2.0 | Bollinger Band standard deviation multiplier |
+| KC Length | 20 | Keltner Channel period |
+| KC Mult | 1.5 | Keltner Channel ATR multiplier |
+
+## Outputs
+
+| Output | Type | Description |
+|:-------|:-----|:------------|
+| Momentum | double | Linear regression momentum value |
+| SqueezeOn | bool | True when BB inside KC |
+| MomentumRising | bool | True when momentum increasing |
+| MomentumPositive | bool | True when momentum > 0 |
+
+## Trading Signals
+
+1. **Squeeze Fired:** First bar where SqueezeOn transitions to false
+2. **Long Entry:** Squeeze fires + momentum positive + momentum rising
+3. **Short Entry:** Squeeze fires + momentum negative + momentum falling
+
+## Category
+
+**Dynamics** - Measures volatility compression and subsequent momentum release.
+
+## See Also
+
+- [BBS: Bollinger Band Squeeze](../../oscillators/bbs/Bbs.md)
+- [BBW: Bollinger Band Width](../../volatility/bbw/Bbw.md)
+- [KCHANNEL: Keltner Channel](../../channels/kchannel/Kchannel.md)
+- [TTM: TTM Trend](../ttm/Ttm.md)