Add Stochastic Oscillator implementation and validation tests

- Implemented Stochastic Oscillator (%K and %D) in Stoch.cs with streaming and batch processing capabilities.
- Added validation tests for the Stochastic Oscillator in Stoch.Validation.Tests.cs, ensuring consistency with Skender.Stock.Indicators.
- Created documentation for the Stochastic Oscillator in Stoch.md, detailing its mathematical formula, architecture, parameters, and common pitfalls.
- Updated project file to include necessary numeric libraries for highest and lowest calculations.

.roo/mcp.json

@@ -9,8 +9,6 @@
 				"scan_list",
 				"symbol",
 				"source",
-				"explore",
-				"understand",
 				"metrics",
 				"hierarchy",
 				"deps",
@@ -21,7 +19,10 @@
 				"nuget_vulnerabilities",
 				"__unlock_csharp_analysis__",
 				"refs",
-				"search"
+				"search",
+				"explore",
+				"diag",
+				"understand"
 			],
 			"disabled": false
 		}