pkg(dotnet-5.0.201): Add dotnet 5.0.201 support

packages/dotnet/5.0.201/build.sh

@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+
+curl "https://download.visualstudio.microsoft.com/download/pr/73a9cb2a-1acd-4d20-b864-d12797ca3d40/075dbe1dc3bba4aa85ca420167b861b6/dotnet-sdk-5.0.201-linux-x64.tar.gz" -Lo dotnet.tar.gz
+tar xzf dotnet.tar.gz --strip-components=1
+rm dotnet.tar.gz
+

packages/dotnet/5.0.201/compile

@@ -0,0 +1,5 @@
+#!/usr/bin/env bash
+
+dotnet new console
+rm Program.cs
+dotnet build -o .

packages/dotnet/5.0.201/environment

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+#!/usr/bin/env bash
+
+# Put 'export' statements here for environment variables
+export DOTNET_ROOT=$PWD
+export PATH=$DOTNET_ROOT:$PATH

packages/dotnet/5.0.201/metadata.json

@@ -0,0 +1,6 @@
+{
+  "language": "dotnet",
+  "version": "5.0.201",
+  "aliases": ["cs", "csharp"],
+  "author": "Thomas Hobson <git@hexf.me>"
+}

packages/dotnet/5.0.201/run

@@ -0,0 +1,5 @@
+#!/usr/bin/env bash
+
+# Put instructions to run the runtime
+shift
+dotnet $(basename $(realpath .)).dll "$@"

packages/dotnet/5.0.201/test.cs

@@ -0,0 +1,9 @@
+using System;
+
+public class Test
+{
+    public static void Main(string[] args)
+    {
+        Console.WriteLine("OK");
+    }
+}