feat(gateway): initial commit

gateway/src/config.rs

@@ -0,0 +1,22 @@
+use config::{self, Config};
+use serde::Deserialize;
+
+#[derive(Deserialize, Debug)]
+pub struct BotConfig {
+    pub token: String,
+    pub max_concurrency: u64,
+    pub database: String,
+    pub redis_addr: String,
+    pub redis_gateway_queue_addr: String,
+    pub shard_count: u64
+}
+
+pub fn load_config() -> BotConfig {
+    let mut settings = Config::default();
+    settings.merge(config::File::with_name("config")).unwrap();
+    settings
+        .merge(config::Environment::with_prefix("PluralKit"))
+        .unwrap();
+
+    settings.try_into::<BotConfig>().unwrap()
+}