Rename RedisChannelHandler to RESPChannelHandler

Fix name.

Author: helje5

Sources/NIORedis/RESPChannelHandler.swift

@@ -14,9 +14,7 @@
 
 import NIO
 
-open class RedisChannelHandler : ChannelInboundHandler,
-                                 ChannelOutboundHandler
-{
+open class RESPChannelHandler : ChannelDuplexHandler {
 
   public typealias InboundErr  = RESPParserError
 

Sources/NIORedis/RESPPipelineSetup.swift

@@ -21,7 +21,7 @@ public extension ChannelPipeline {
                                      name  : String = "de.zeezide.nio.RESP")
               -> EventLoopFuture<Void>
   {
-    return self.add(name: name, handler: RedisChannelHandler(), first: first)
+    return self.add(name: name, handler: RESPChannelHandler(), first: first)
   }
 
 }