feat: add hurl! and local_folder! macros to make Url easier to create (#135)

* it was named `hurl!` instead of just `url!` because it was clashing with the crate `url` so we would have been forced to use it with `harmony_macros::url!` which is less sexy

Reviewed-on: NationTech/harmony#135

examples/rust/src/main.rs

@@ -13,13 +13,13 @@ use harmony::{
     },
     topology::K8sAnywhereTopology,
 };
-use harmony_types::net::Url;
+use harmony_macros::hurl;
 
 #[tokio::main]
 async fn main() {
     let application = Arc::new(RustWebapp {
         name: "harmony-example-rust-webapp".to_string(),
-        domain: Url::Url(url::Url::parse("https://rustapp.harmony.example.com").unwrap()),
+        domain: hurl!("https://rustapp.harmony.example.com"),
         project_root: PathBuf::from("./webapp"),
         framework: Some(RustWebFramework::Leptos),
         service_port: 3000,
@@ -27,12 +27,12 @@ async fn main() {
 
     let discord_receiver = DiscordWebhook {
         name: "test-discord".to_string(),
-        url: Url::Url(url::Url::parse("https://discord.doesnt.exist.com").unwrap()),
+        url: hurl!("https://discord.doesnt.exist.com"),
     };
 
     let webhook_receiver = WebhookReceiver {
         name: "sample-webhook-receiver".to_string(),
-        url: Url::Url(url::Url::parse("https://webhook-doesnt-exist.com").unwrap()),
+        url: hurl!("https://webhook-doesnt-exist.com"),
     };
 
     let app = ApplicationScore {