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/users.go

@@ -0,0 +1,104 @@
+package api // import "github.com/SevereCloud/vksdk/v2/api"
+
+import (
+	"github.com/SevereCloud/vksdk/v2/object"
+)
+
+// UsersGetResponse users.get response.
+type UsersGetResponse []object.UsersUser
+
+// UsersGet returns detailed information on users.
+//
+// https://vk.com/dev/users.get
+func (vk *VK) UsersGet(params Params) (response UsersGetResponse, err error) {
+	err = vk.RequestUnmarshal("users.get", &response, params)
+	return
+}
+
+// UsersGetFollowersResponse struct.
+type UsersGetFollowersResponse struct {
+	Count int   `json:"count"`
+	Items []int `json:"items"`
+}
+
+// UsersGetFollowers returns a list of IDs of followers of the user in
+// question, sorted by date added, most recent first.
+//
+// 	fields="";
+//
+// https://vk.com/dev/users.getFollowers
+func (vk *VK) UsersGetFollowers(params Params) (response UsersGetFollowersResponse, err error) {
+	err = vk.RequestUnmarshal("users.getFollowers", &response, params, Params{"fields": ""})
+
+	return
+}
+
+// UsersGetFollowersFieldsResponse struct.
+type UsersGetFollowersFieldsResponse struct {
+	Count int                `json:"count"`
+	Items []object.UsersUser `json:"items"`
+}
+
+// UsersGetFollowersFields returns a list of IDs of followers of the user in
+// question, sorted by date added, most recent first.
+//
+// fields not empty.
+//
+// https://vk.com/dev/users.getFollowers
+func (vk *VK) UsersGetFollowersFields(params Params) (response UsersGetFollowersFieldsResponse, err error) {
+	reqParams := make(Params)
+	if v, prs := params["fields"]; v == "" || !prs {
+		reqParams["fields"] = "id"
+	}
+
+	err = vk.RequestUnmarshal("users.getFollowers", &response, params, reqParams)
+
+	return
+}
+
+// UsersGetSubscriptionsResponse struct.
+type UsersGetSubscriptionsResponse struct {
+	Users struct {
+		Count int   `json:"count"`
+		Items []int `json:"items"`
+	} `json:"users"`
+	Groups struct {
+		Count int   `json:"count"`
+		Items []int `json:"items"`
+	} `json:"groups"`
+}
+
+// UsersGetSubscriptions returns a list of IDs of users and public pages followed by the user.
+//
+// 	extended=0
+//
+// https://vk.com/dev/users.getSubscriptions
+//
+// BUG(SevereCloud): UsersGetSubscriptions bad response with extended=1.
+func (vk *VK) UsersGetSubscriptions(params Params) (response UsersGetSubscriptionsResponse, err error) {
+	err = vk.RequestUnmarshal("users.getSubscriptions", &response, params, Params{"extended": false})
+
+	return
+}
+
+// UsersReport reports (submits a complain about) a user.
+//
+// https://vk.com/dev/users.report
+func (vk *VK) UsersReport(params Params) (response int, err error) {
+	err = vk.RequestUnmarshal("users.report", &response, params)
+	return
+}
+
+// UsersSearchResponse struct.
+type UsersSearchResponse struct {
+	Count int                `json:"count"`
+	Items []object.UsersUser `json:"items"`
+}
+
+// UsersSearch returns a list of users matching the search criteria.
+//
+// https://vk.com/dev/users.search
+func (vk *VK) UsersSearch(params Params) (response UsersSearchResponse, err error) {
+	err = vk.RequestUnmarshal("users.search", &response, params)
+	return
+}