Switched to cli module; merged cli & vieter into single binary

src/server/cli.v

@@ -0,0 +1,16 @@
+module server
+
+import cli
+import env
+
+pub fn cmd() cli.Command {
+	return cli.Command{
+		name: 'server'
+		description: 'Start the Vieter server'
+		execute: fn (cmd cli.Command) ? {
+			conf := env.load<env.ServerConfig>() ?
+
+			server.server(conf) ?
+		}
+	}
+}