Add vk bridge (#1372)

* Add vk bridge

* Vk bridge attachments

* Vk bridge forwarded messages

* Vk bridge sample config and code cleanup

* Vk bridge add vendor

* Vk bridge message edit

* Vk bridge: fix fetching names of other bots

* Vk bridge: code cleanup

* Vk bridge: fix shadows declaration

* Vk bridge: remove UseFileURL

vendor/github.com/SevereCloud/vksdk/v2/api/gifts.go

@@ -0,0 +1,32 @@
+package api // import "github.com/SevereCloud/vksdk/v2/api"
+
+import "github.com/SevereCloud/vksdk/v2/object"
+
+// GiftsGetResponse struct.
+type GiftsGetResponse struct {
+	Count int                `json:"count"`
+	Items []object.GiftsGift `json:"items"`
+}
+
+// GiftsGet returns a list of user gifts.
+//
+// https://vk.com/dev/gifts.get
+func (vk *VK) GiftsGet(params Params) (response GiftsGetResponse, err error) {
+	err = vk.RequestUnmarshal("gifts.get", &response, params)
+	return
+}
+
+// GiftsGetCatalogResponse struct.
+type GiftsGetCatalogResponse []struct {
+	Name  string             `json:"name"`
+	Title string             `json:"title"`
+	Items []object.GiftsGift `json:"items"`
+}
+
+// GiftsGetCatalog returns catalog.
+//
+// https://vk.com/dev/gifts.get
+func (vk *VK) GiftsGetCatalog(params Params) (response GiftsGetCatalogResponse, err error) {
+	err = vk.RequestUnmarshal("gifts.getCatalog", &response, params)
+	return
+}