Rename commands and add aliases.

DiscImageChef/Commands/Image/Checksum.cs

@@ -51,6 +51,8 @@ namespace DiscImageChef.Commands.Image
 
         public ChecksumCommand() : base("checksum", "Checksums an image.")
         {
+            AddAlias("chk");
+
             Add(new Option(new[]
                 {
                     "--adler32", "-a"

DiscImageChef/Commands/Image/Compare.cs

@@ -49,6 +49,8 @@ namespace DiscImageChef.Commands.Image
     {
         public CompareCommand() : base("compare", "Compares two disc images.")
         {
+            AddAlias("cmp");
+
             AddArgument(new Argument<string>
             {
                 Arity = ArgumentArity.ExactlyOne, Description = "First media image path", Name = "image-path1"

DiscImageChef/Commands/Image/Convert.cs

@@ -52,7 +52,7 @@ namespace DiscImageChef.Commands.Image
 {
     internal class ConvertImageCommand : Command
     {
-        public ConvertImageCommand() : base("convert-image", "Converts one image to another format.")
+        public ConvertImageCommand() : base("convert", "Converts one image to another format.")
         {
             Add(new Option(new[]
                 {

DiscImageChef/Commands/Image/Info.cs

@@ -43,7 +43,7 @@ namespace DiscImageChef.Commands.Image
 {
     internal class ImageInfoCommand : Command
     {
-        public ImageInfoCommand() : base("image-info",
+        public ImageInfoCommand() : base("info",
                                          "Opens a media image and shows information about the media it represents and metadata.")
         {
             AddArgument(new Argument<string>

DiscImageChef/Commands/Image/Print.cs

@@ -42,7 +42,7 @@ namespace DiscImageChef.Commands.Image
 {
     internal class PrintHexCommand : Command
     {
-        public PrintHexCommand() : base("printhex", "Prints a sector, in hexadecimal values, to the console.")
+        public PrintHexCommand() : base("print", "Prints a sector, in hexadecimal values, to the console.")
         {
             Add(new Option(new[]
                 {