Add ns.ui.clearTerminal for 0.2 GB

src/NetscriptFunctions/UserInterface.ts

@@ -14,6 +14,7 @@ import { defaultTheme } from "../Themes/Themes";
 import { defaultStyles } from "../Themes/Styles";
 import { CONSTANTS } from "../Constants";
 import { hash } from "../hash/hash";
+import { Terminal } from "../../src/Terminal";
 
 export function NetscriptUserInterface(
   player: IPlayer,
@@ -108,5 +109,10 @@ export function NetscriptUserInterface(
 
       return gameInfo;
     },
+
+    clearTerminal: function (): void {
+      updateRam("clearTerminal");
+      Terminal.clear();
+    },
   };
 }