Add example infrastructure

* Add "Shared" projects for all examples
* Update "Colors" example with better TrueColor demo
* Use same namespace for all examples

examples/Cli/Injection/Commands/DefaultCommand.cs

@@ -2,7 +2,7 @@ using System;
 using System.ComponentModel;
 using Spectre.Console.Cli;
 
-namespace Injection.Commands
+namespace Spectre.Console.Examples
 {
     public sealed class DefaultCommand : Command<DefaultCommand.Settings>
     {

examples/Cli/Injection/IGreeter.cs

@@ -1,6 +1,4 @@
-using System;
-
-namespace Injection
+namespace Spectre.Console.Examples
 {
     public interface IGreeter
     {
@@ -11,7 +9,7 @@ namespace Injection
     {
         public void Greet(string name)
         {
-            Console.WriteLine($"Hello {name}!");
+            AnsiConsole.WriteLine($"Hello {name}!");
         }
     }
 }

examples/Cli/Injection/Infrastructure/TypeRegistrar.cs

@@ -2,7 +2,7 @@ using System;
 using Microsoft.Extensions.DependencyInjection;
 using Spectre.Console.Cli;
 
-namespace Injection
+namespace Spectre.Console.Examples
 {
     public sealed class TypeRegistrar : ITypeRegistrar
     {

examples/Cli/Injection/Infrastructure/TypeResolver.cs

@@ -2,7 +2,7 @@ using System;
 using Microsoft.Extensions.DependencyInjection;
 using Spectre.Console.Cli;
 
-namespace Injection
+namespace Spectre.Console.Examples
 {
     public sealed class TypeResolver : ITypeResolver, IDisposable
     {

examples/Cli/Injection/Injection.csproj

@@ -15,7 +15,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <ProjectReference Include="..\..\..\src\Spectre.Console\Spectre.Console.csproj" />
+    <ProjectReference Include="..\..\Shared\Shared.csproj" />
   </ItemGroup>
 
 </Project>

examples/Cli/Injection/Program.cs

@@ -1,8 +1,7 @@
-using Injection.Commands;
 using Microsoft.Extensions.DependencyInjection;
 using Spectre.Console.Cli;
 
-namespace Injection
+namespace Spectre.Console.Examples
 {
     public class Program
     {