stream/buffer: remove time.ticker publish limiter for websocket orderbook updates (#1681)

* stream/buffer: remove publish period for for signalling change through data handler

* Add config upgrade and downgrade

* linter: fix

* GK: nits

* Update config/versions/v3.go

Co-authored-by: Adrian Gallagher <adrian.gallagher@thrasher.io>

* Update config/versions/v3.go

Co-authored-by: Adrian Gallagher <adrian.gallagher@thrasher.io>

* Update config/versions/v3.go

Co-authored-by: Adrian Gallagher <adrian.gallagher@thrasher.io>

* Update config/versions/v3.go

Co-authored-by: Adrian Gallagher <adrian.gallagher@thrasher.io>

* Update config/versions/v3.go

Co-authored-by: Adrian Gallagher <adrian.gallagher@thrasher.io>

* config: fix up commited suggestion

---------

Co-authored-by: Ryan O'Hara-Reid <ryan.oharareid@thrasher.io>
Co-authored-by: Adrian Gallagher <adrian.gallagher@thrasher.io>

config_example.json

@@ -574,8 +574,7 @@
    "orderbook": {
     "verificationBypass": false,
     "websocketBufferLimit": 5,
-    "websocketBufferEnabled": false,
-    "publishPeriod": 10000000000
+    "websocketBufferEnabled": false
    }
   },
   {
@@ -812,8 +811,7 @@
    "orderbook": {
     "verificationBypass": false,
     "websocketBufferLimit": 5,
-    "websocketBufferEnabled": false,
-    "publishPeriod": 10000000000
+    "websocketBufferEnabled": false
    }
   },
   {
@@ -2224,8 +2222,7 @@
    "orderbook": {
     "verificationBypass": false,
     "websocketBufferLimit": 5,
-    "websocketBufferEnabled": false,
-    "publishPeriod": 10000000000
+    "websocketBufferEnabled": false
    }
   },
   {