nth-prime: add generator

Author: ErikSchierboom

exercises/practice/nth-prime/.meta/Generator.tpl

@@ -0,0 +1,17 @@
+using System;
+using Xunit;
+
+public class {{testClass}}
+{
+    {{for test in tests}}
+    [Fact{{if !for.first}}(Skip = "Remove this Skip property to run this test"){{end}}]
+    public void {{test.testMethod}}()
+    {
+        {{if test.expected.error}}
+            Assert.Throws<ArgumentOutOfRangeException>(() => {{testedClass}}.{{test.testedMethod}}({{test.input.number}}));
+        {{else}}
+            Assert.Equal({{test.expected}}, {{testedClass}}.{{test.testedMethod}}({{test.input.number}}));
+        {{end}}
+    }
+    {{end}}
+}