refactor: rename Badge to TwitchBadge (#6706)

this change is made to clarify that the previously-called Badge object
is actually specialized for Twitch badges

tests/snapshots/IrcMessageHandler/sub-first-gift.json

@@ -2,10 +2,6 @@
     "input": "@badges=subscriber/0,premium/1;color=#00FF7F;display-name=hyperbolicxd;emotes=;id=b20ef4fe-cba8-41d0-a371-6327651dc9cc;login=hyperbolicxd;mod=0;msg-id=subgift;msg-param-months=1;msg-param-recipient-display-name=quote_if_nam;msg-param-recipient-id=217259245;msg-param-recipient-user-name=quote_if_nam;msg-param-sender-count=1;msg-param-sub-plan-name=Channel\\sSubscription\\s(nymn_hs);msg-param-sub-plan=1000;room-id=62300805;subscriber=1;system-msg=hyperbolicxd\\sgifted\\sa\\sTier\\s1\\ssub\\sto\\squote_if_nam!\\sThis\\sis\\stheir\\sfirst\\sGift\\sSub\\sin\\sthe\\schannel!;tmi-sent-ts=1528190938558;turbo=0;user-id=111534250;user-type= :tmi.twitch.tv USERNOTICE #pajlada",
     "output": [
         {
-            "badgeInfos": {
-            },
-            "badges": [
-            ],
             "channelName": "",
             "count": 1,
             "displayName": "",
@@ -127,6 +123,10 @@
             "searchText": "hyperbolicxd gifted a Tier 1 sub to quote_if_nam! This is their first Gift Sub in the channel!",
             "serverReceivedTime": "",
             "timeoutUser": "",
+            "twitchBadgeInfos": {
+            },
+            "twitchBadges": [
+            ],
             "userID": "",
             "usernameColor": "#ff000000"
         }