Added downloading mods from Modrinth

src/commands/install_command.ts

@@ -0,0 +1,19 @@
+import { Command } from "commander";
+import Subcommand from "./subcommand.js"
+import ModManager from "../mod-manager.js";
+import Mods from "../mods/mods.js";
+
+export default class InstallCommand implements Subcommand {
+    registerCommand(program: Command): void {
+        program.command("install")
+            .description("Installs the provided mods")
+            .argument("<mods...>", "The mods to install")
+            .action((mods) => {
+                ModManager.execute(async () => {
+                    for (const mod of mods) {
+                        await Mods.install(mod);
+                    }
+                })
+            });
+    }
+}

src/commands/subcommand.ts

@@ -1,6 +1,5 @@
 import { Command } from "commander";
 
-export default abstract class Subcommand {
-    abstract registerCommand(program: Command): void;
-    abstract execute(): void;
+export default interface Subcommand {
+    registerCommand(program: Command): void;
 }