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/leads.go

@@ -0,0 +1,74 @@
+package api // import "github.com/SevereCloud/vksdk/v2/api"
+
+import (
+	"github.com/SevereCloud/vksdk/v2/object"
+)
+
+// LeadsCheckUserResponse struct.
+type LeadsCheckUserResponse object.LeadsChecked
+
+// LeadsCheckUser checks if the user can start the lead.
+//
+// https://vk.com/dev/leads.checkUser
+func (vk *VK) LeadsCheckUser(params Params) (response LeadsCheckUserResponse, err error) {
+	err = vk.RequestUnmarshal("leads.checkUser", &response, params)
+	return
+}
+
+// LeadsCompleteResponse struct.
+type LeadsCompleteResponse object.LeadsComplete
+
+// LeadsComplete completes the lead started by user.
+//
+// https://vk.com/dev/leads.complete
+func (vk *VK) LeadsComplete(params Params) (response LeadsCompleteResponse, err error) {
+	err = vk.RequestUnmarshal("leads.complete", &response, params)
+	return
+}
+
+// LeadsGetStatsResponse struct.
+type LeadsGetStatsResponse object.LeadsLead
+
+// LeadsGetStats returns lead stats data.
+//
+// https://vk.com/dev/leads.getStats
+func (vk *VK) LeadsGetStats(params Params) (response LeadsGetStatsResponse, err error) {
+	err = vk.RequestUnmarshal("leads.getStats", &response, params)
+	return
+}
+
+// LeadsGetUsersResponse struct.
+type LeadsGetUsersResponse object.LeadsEntry
+
+// LeadsGetUsers returns a list of last user actions for the offer.
+//
+// https://vk.com/dev/leads.getUsers
+func (vk *VK) LeadsGetUsers(params Params) (response LeadsGetUsersResponse, err error) {
+	err = vk.RequestUnmarshal("leads.getUsers", &response, params)
+	return
+}
+
+// LeadsMetricHitResponse struct.
+type LeadsMetricHitResponse struct {
+	Result       object.BaseBoolInt `json:"result"`        // Information whether request has been processed successfully
+	RedirectLink string             `json:"redirect_link"` // Redirect link
+}
+
+// LeadsMetricHit counts the metric event.
+//
+// https://vk.com/dev/leads.metricHit
+func (vk *VK) LeadsMetricHit(params Params) (response LeadsMetricHitResponse, err error) {
+	err = vk.RequestUnmarshal("leads.metricHit", &response, params)
+	return
+}
+
+// LeadsStartResponse struct.
+type LeadsStartResponse object.LeadsStart
+
+// LeadsStart creates new session for the user passing the offer.
+//
+// https://vk.com/dev/leads.start
+func (vk *VK) LeadsStart(params Params) (response LeadsStartResponse, err error) {
+	err = vk.RequestUnmarshal("leads.start", &response, params)
+	return
+}