Add ns.ui.[getStyles, setStyles, resetStyles]

Adds three Netscript functions to manipulate the user's styles like the
player can with theme.

markdown/bitburner.userinterface.setstyles.md

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+<!-- Do not edit this file. It is automatically generated by API Documenter. -->
+
+[Home](./index.md) &gt; [bitburner](./bitburner.md) &gt; [UserInterface](./bitburner.userinterface.md) &gt; [setStyles](./bitburner.userinterface.setstyles.md)
+
+## UserInterface.setStyles() method
+
+Sets the current styles
+
+<b>Signature:</b>
+
+```typescript
+setStyles(newStyles: IStyleSettings): void;
+```
+
+## Parameters
+
+|  Parameter | Type | Description |
+|  --- | --- | --- |
+|  newStyles | IStyleSettings |  |
+
+<b>Returns:</b>
+
+void
+
+## Remarks
+
+RAM cost: cost: 0 GB
+
+## Example
+
+Usage example (NS2)
+
+```ts
+const styles = ns.ui.getStyles();
+styles.fontFamily = 'Comic Sans Ms';
+ns.ui.setStyles(styles);
+```
+