Add MempoolClient to Client Interface (#3987)

* Add MempoolClient to Client Interface

closes #3984

- add mempoolclient interface to client interface

Signed-off-by: Marko Baricevic <marbar3778@yahoo.com>

* Update CHANGELOG_PENDING.md

* add golang-ci version

CHANGELOG_PENDING.md

@@ -20,6 +20,7 @@ program](https://hackerone.com/tendermint).
 ### IMPROVEMENTS:
 
 - [rpc] \#2010 Add NewHTTPWithClient and NewJSONRPCClientWithHTTPClient (note these and NewHTTP, NewJSONRPCClient functions panic if remote is invalid) (@gracenoah)
+- [rpc] \#3984 Add `MempoolClient` interface to `Client` interface
 
 ### BUG FIXES:
 

rpc/client/interface.go

@@ -39,6 +39,7 @@ type Client interface {
 	SignClient
 	StatusClient
 	EvidenceClient
+	MempoolClient
 }
 
 // ABCIClient groups together the functionality that principally affects the

rpc/client/mock/client.go

@@ -37,6 +37,7 @@ type Client struct {
 	client.StatusClient
 	client.EventsClient
 	client.EvidenceClient
+	client.MempoolClient
 	cmn.Service
 }
 

types/vote.go

@@ -12,8 +12,8 @@ import (
 
 const (
 	// MaxVoteBytes is a maximum vote size (including amino overhead).
-	MaxVoteBytes int64 = 223
-	nilVoteStr         = "nil-Vote"
+	MaxVoteBytes int64  = 223
+	nilVoteStr   string = "nil-Vote"
 )
 
 var (