feat(download-client): add support for Porla (#553)

* Add support for the 'Test' button to work

* Make Porla show up in filter actions select

* Add an empty Porla action

* Make Porla action find download client

* Make implementation actually add torrent to Porla

* Fix qBittorrent import

* Finish up Porla action

* Check length on commitish before slicing

* Move Porla to the other DL clients

* Add Porla to type name map

* Move Porla to beneath the other download clients

pkg/porla/methods.go

@@ -0,0 +1,43 @@
+package porla
+
+func (c *Client) Version() (*SysVersionsPorla, error) {
+	response, err := c.rpcClient.Call("sys.versions")
+
+	if err != nil {
+		return nil, err
+	}
+
+	if response.Error != nil {
+		return nil, response.Error
+	}
+
+	var versions *SysVersions
+	err = response.GetObject(&versions)
+
+	if err != nil {
+		return nil, err
+	}
+
+	return &versions.Porla, nil
+}
+
+func (c *Client) TorrentsAdd(req *TorrentsAddReq) error {
+	response, err := c.rpcClient.Call("torrents.add", req)
+
+	if err != nil {
+		return err
+	}
+
+	if response.Error != nil {
+		return response.Error
+	}
+
+	var res *TorrentsAddRes
+	err = response.GetObject(&res)
+
+	if err != nil {
+		return err
+	}
+
+	return nil
+}