Adds [unit] and [unitDisplay] to NumberFormatOptions (microsoft#38013)

* Adds [unit] and [unitDisplay] to NumberFormatOptions

* Adds [unit] and [unitDisplay] to ResolvedNumberFormatOptions

* Updates tests for NumberFormatOptions and ResolvedNumberFormatOptions

* move unit[Display] from es5 to es2020

Co-authored-by: Nathan Shively-Sanders <293473+sandersn@users.noreply.github.com>

Author: obber

src/lib/es2020.intl.d.ts

@@ -264,9 +264,13 @@ declare namespace Intl {
 
     interface NumberFormatOptions {
         notation?: string;
+        unit?: string;
+        unitDisplay?: string;
     }
 
     interface ResolvedNumberFormatOptions {
         notation?: string;
+        unit?: string;
+        unitDisplay?: string;
     }
 }

tests/lib/lib.d.ts

@@ -3892,6 +3892,8 @@ declare module Intl {
         style?: string;
         currency?: string;
         currencyDisplay?: string;
+        unit?: string;
+        unitDisplay?: string;
         useGrouping?: boolean;
         minimumIntegerDigits?: number;
         minimumFractionDigits?: number;
@@ -3907,6 +3909,8 @@ declare module Intl {
         style: string;
         currency?: string;
         currencyDisplay?: string;
+        unit?: string;
+        unitDisplay?: string;
         minimumIntegerDigits: number;
         minimumFractionDigits: number;
         maximumFractionDigits: number;