feat(fsharp): add Oxpecker sample

fsharp/oxpecker/Program.fs

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+open System.Threading.Tasks
+open Microsoft.AspNetCore.Builder
+open Microsoft.AspNetCore.Hosting
+open Microsoft.Extensions.DependencyInjection
+open Microsoft.Extensions.Hosting
+open Microsoft.Extensions.Logging
+open Oxpecker
+
+let emptyHandler: EndpointHandler = fun _ -> Task.CompletedTask
+
+let userIdHandler: EndpointHandler =
+    fun ctx ->
+        match ctx.TryGetRouteValue<string>("id") with
+        | Some id -> ctx.WriteText(id)
+        | None -> Task.CompletedTask
+
+let endpoints =
+    [ GET [ route "/" emptyHandler; route "/user/{id?}" userIdHandler ]
+      POST [ route "/user" emptyHandler ] ]
+
+let configureLogging (log: ILoggingBuilder) = log.ClearProviders() |> ignore
+
+let configureServices (services: IServiceCollection) =
+    services.AddRouting().AddOxpecker() |> ignore
+
+let configureApp (app: IApplicationBuilder) =
+    app.UseRouting().UseOxpecker(endpoints) |> ignore
+
+let args = System.Environment.GetCommandLineArgs()
+
+Host
+    .CreateDefaultBuilder(args)
+    .ConfigureWebHost(fun webHost ->
+        webHost
+            .UseKestrel(fun c -> c.AddServerHeader <- false)
+            .ConfigureLogging(configureLogging)
+            .ConfigureServices(configureServices)
+            .Configure(configureApp)
+        |> ignore)
+    .Build()
+    .Run()

fsharp/oxpecker/config.yaml

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+framework:
+  github: Lanayx/Oxpecker
+  version: 1.2

fsharp/oxpecker/web.fsproj

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+<Project Sdk="Microsoft.NET.Sdk.Web">
+  <PropertyGroup>
+    <TargetFramework>net9.0</TargetFramework>
+    <IsPackable>false</IsPackable>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+  <ItemGroup>
+    <Compile Include="Program.fs" />
+  </ItemGroup>
+  <ItemGroup>
+    <PackageReference Include="Oxpecker" Version="1.2.*" />
+  </ItemGroup>
+</Project>