Modpack support (#60)

* Modpack support

* Finish feature

* Tauri errors fix (#61)

* async impl

* working

* fmt and redundancy

* moved ? to if let Ok block

* Finish modpacks support

* remove generated file

* fix compile err

* fix lint

* Fix code review comments + forge support

---------

Co-authored-by: Wyatt Verchere <wverchere@gmail.com>

theseus_gui/src-tauri/src/api/pack.rs

@@ -0,0 +1,17 @@
+use crate::api::Result;
+use std::path::{Path, PathBuf};
+use theseus::prelude::*;
+
+// Creates a pack from a version ID (returns a path to the created profile)
+// invoke('pack_install_version_id', version_id)
+#[tauri::command]
+pub async fn pack_install_version_id(version_id: String) -> Result<PathBuf> {
+    let res = pack::install_pack_from_version_id(version_id).await?;
+    Ok(res)
+}
+
+#[tauri::command]
+pub async fn pack_install_file(path: &Path) -> Result<PathBuf> {
+    let res = pack::install_pack_from_file(path.to_path_buf()).await?;
+    Ok(res)
+}