add all backpack versions

Author: pxpm

src/app/Console/Commands/Version.php

@@ -36,14 +36,11 @@ public function handle()
         $this->line(\PackageVersions\Versions::getVersion('laravel/framework'));
         $this->line('');
 
-        $this->comment('### BACKPACK CRUD:');
-        $this->line(\PackageVersions\Versions::getVersion('backpack/crud'));
-        $this->line('');
-
-        if (backpack_pro()) {
-            $this->comment('### BACKPACK PRO:');
-            $this->line(\PackageVersions\Versions::getVersion('backpack/pro'));
-            $this->line('');
+        $this->comment('### BACKPACK PACKAGE VERSIONS:');
+        foreach(\PackageVersions\Versions::VERSIONS as $package => $version) {
+            if (substr($package, 0, 9) == 'backpack/') {
+                $this->line($package.': '.strtok($version,'@'));
+            }
         }
     }