(chocolatey#2377) Add new config value DefaultTemplateName

This will be used to allow the user to control which template should be
used by default. While it is possible to allow the user to override the
default template files, this gives them a little bit more control, to
specify via configuration which template they want to use by default.

src/chocolatey/infrastructure.app/ApplicationParameters.cs

@@ -174,6 +174,7 @@ public static class ConfigSettings
             public static readonly string ProxyBypassOnLocal = "proxyBypassOnLocal";
             public static readonly string WebRequestTimeoutSeconds = "webRequestTimeoutSeconds";
             public static readonly string UpgradeAllExceptions = "upgradeAllExceptions";
+            public static readonly string DefaultTemplateName = "defaultTemplateName";
         }
 
         public static class Features

src/chocolatey/infrastructure.app/builders/ConfigurationBuilder.cs

@@ -254,6 +254,7 @@ private static void set_config_items(ChocolateyConfiguration config, ConfigFileS
             config.Proxy.BypassList = set_config_item(ApplicationParameters.ConfigSettings.ProxyBypassList, configFileSettings, string.Empty, "Optional proxy bypass list. Comma separated. Available in 0.10.4+.");
             config.Proxy.BypassOnLocal = set_config_item(ApplicationParameters.ConfigSettings.ProxyBypassOnLocal, configFileSettings, "true", "Bypass proxy for local connections. Available in 0.10.4+.").is_equal_to(bool.TrueString);
             config.UpgradeCommand.PackageNamesToSkip = set_config_item(ApplicationParameters.ConfigSettings.UpgradeAllExceptions, configFileSettings, string.Empty, "A comma-separated list of package names that should not be upgraded when running `choco upgrade all'. Defaults to empty. Available in 0.10.14+.");
+            config.DefaultTemplateName = set_config_item(ApplicationParameters.ConfigSettings.DefaultTemplateName, configFileSettings, string.Empty, "Default template name used when running 'choco new' command. Available in 0.12.0+.");
         }
 
         private static string set_config_item(string configName, ConfigFileSettings configFileSettings, string defaultValue, string description, bool forceSettingValue = false)

src/chocolatey/infrastructure.app/configuration/ChocolateyConfiguration.cs

@@ -146,6 +146,7 @@ private void append_output(StringBuilder propertyValues, string append)
         public bool ContainsLegacyPackageInstalls { get; set; }
         public int CommandExecutionTimeoutSeconds { get; set; }
         public int WebRequestTimeoutSeconds { get; set; }
+        public string DefaultTemplateName { get; set; }
 
         /// <summary>
         ///   One or more source locations set by configuration or by command line. Separated by semi-colon