Added downloading mods from Modrinth

src/mod-manager.ts

@@ -1,25 +1,31 @@
 #!/usr/bin/env node
 import { Command } from "commander";
 import InitCommand from "./commands/init_command.js";
+import InstallCommand from "./commands/install_command.js";
 import Subcommand from "./commands/subcommand.js";
 import Initialiser from "./util/initialiser.js";
 import PrintUtils from "./util/print_utils.js";
+//import PrettyError from "pretty-error";
 
 export default class ModManager {
   private static program: Command = new Command();
 
   private static subcommands: Array<Subcommand> = [
-    new InitCommand()
+    new InitCommand(),
+    new InstallCommand()
   ];
 
   static init() {
+    //const pe = new PrettyError();
+    //pe.start();
+
     this.program
       .name('mod-manager')
       .description('A package (mod) manager for Fabric Minecraft Servers');
 
-    this.subcommands.forEach(command => {
-      command.registerCommand(ModManager.program);
-    });
+    for (const command of this.subcommands) {
+      command.registerCommand(this.program);
+    }
 
     this.program.parse();
   }
@@ -30,10 +36,9 @@ export default class ModManager {
     } else {
       PrintUtils.error("Mod Manager is not initialised");
     }
-  } 
+  }
 }
 
-
 ModManager.init();