feat: add install command

This introduces a separate utility subcommand.

src/main/kotlin/app/revanced/cli/command/utility/UtilityCommand.kt

@@ -0,0 +1,10 @@
+package app.revanced.cli.command.utility
+
+import picocli.CommandLine
+
+@CommandLine.Command(
+    name = "utility",
+    description = ["Commands for utility purposes"],
+    subcommands = [InstallCommand::class, UninstallCommand::class],
+)
+internal object UtilityCommand