(chocolateyGH-1949) switch assembly location on official key

Previously, Debug vs Release was the switch to where Chocolatey resolved
its location along with where the licensed dll would be. Now use the
official key setting to determine that switching. This should allow
locating items next to chocolatey if local as well as when installed
at the machine level.

For release official mode, maintain what used to be Release to allow
for that same behavior to continue.

Author: ferventcoder

src/chocolatey/infrastructure.app/ApplicationParameters.cs

@@ -30,13 +30,16 @@ public static class ApplicationParameters
         private static readonly IFileSystem _fileSystem = new DotNetFileSystem();
         public static readonly string ChocolateyInstallEnvironmentVariableName = "ChocolateyInstall";
         public static readonly string Name = "Chocolatey";
-#if DEBUG
-        public static readonly string InstallLocation = _fileSystem.get_directory_name(_fileSystem.get_current_assembly_path());
-        public static readonly string LicensedAssemblyLocation = _fileSystem.file_exists(_fileSystem.combine_paths(InstallLocation, "chocolatey.licensed.dll")) ? _fileSystem.combine_paths(InstallLocation, "chocolatey.licensed.dll") : _fileSystem.combine_paths(InstallLocation, "extensions", "chocolatey", "chocolatey.licensed.dll");
 
-#else
+#if FORCE_CHOCOLATEY_OFFICIAL_KEY
+        // always look at the official location of the machine installation
         public static readonly string InstallLocation = System.Environment.GetEnvironmentVariable(ChocolateyInstallEnvironmentVariableName) ?? _fileSystem.get_directory_name(_fileSystem.get_current_assembly_path());
         public static readonly string LicensedAssemblyLocation = _fileSystem.combine_paths(InstallLocation, "extensions", "chocolatey", "chocolatey.licensed.dll");
+#else
+        // Install location is choco.exe or chocolatey.dll
+        public static readonly string InstallLocation = _fileSystem.get_directory_name(_fileSystem.get_current_assembly_path());
+        // when being used as a reference, start by looking next to Chocolatey, then in a subfolder.
+        public static readonly string LicensedAssemblyLocation = _fileSystem.file_exists(_fileSystem.combine_paths(InstallLocation, "chocolatey.licensed.dll")) ? _fileSystem.combine_paths(InstallLocation, "chocolatey.licensed.dll") : _fileSystem.combine_paths(InstallLocation, "extensions", "chocolatey", "chocolatey.licensed.dll");
 #endif
 
         public static readonly string CommonAppDataChocolatey = _fileSystem.combine_paths(System.Environment.GetFolderPath(System.Environment.SpecialFolder.CommonApplicationData), Name);