test: add path smoothing scenarios and fixtures

ClumsyPilot/tests/generate_path_smoothing_fixtures.ps1

@@ -0,0 +1,15 @@
+param(
+    [string]$AssemblyPath = (Join-Path $PSScriptRoot '..\bin\Debug\netstandard2.0\ClumsyPilot.dll'),
+    [string]$OutputPath = (Join-Path $PSScriptRoot '..\ParkrobTrajplanner\PathSmoothing\Test\Fixtures\path-smoothing-fixtures.json'),
+    [switch]$Overwrite
+)
+
+$ErrorActionPreference = 'Stop'
+$newtonsoftPath = Join-Path $env:USERPROFILE '.nuget\packages\newtonsoft.json\13.0.4\lib\netstandard2.0\Newtonsoft.Json.dll'
+if (Test-Path -LiteralPath $newtonsoftPath) { [Reflection.Assembly]::LoadFrom($newtonsoftPath) | Out-Null }
+$assembly = [Reflection.Assembly]::LoadFrom((Resolve-Path $AssemblyPath))
+$type = $assembly.GetType('MultiWheelC.TrajectoryPlanning.PathSmoothing.Test.SmoothingFixtureGenerator', $true)
+$method = $type.GetMethod('Generate', [Type[]]@([string], [bool]))
+if ($null -eq $method) { throw 'SmoothingFixtureGenerator.Generate(string, bool) is missing.' }
+$method.Invoke($null, @([IO.Path]::GetFullPath($OutputPath), [bool]$Overwrite))
+Write-Output "Path smoothing fixtures generated: $OutputPath"