Azure Maps TimeZone package update (Azure#47323)

* Update TimeZone SDK based on review

* Update testing authentication method

* Update cspell.json for Azure.Maps.TimeZones

* Update code snippets and docstring

* Remove file for renaming

* Add TimeZoneId.cs

* Update TimeZone recording settings

* Update samples and README

* Update member variable names

* Add IanaIdData type

.vscode/cspell.json

@@ -264,7 +264,7 @@
         "Hvci"
       ]
     },
-	  {
+    {
       "filename": "**/sdk/computefleet/**/*.cs",
       "words": [
         "Rdma"
@@ -917,7 +917,7 @@
       ]
     },
     {
-      "filename": "**/sdk/maps/Azure.Maps.TimeZone/**/*.cs",
+      "filename": "**/sdk/maps/Azure.Maps.TimeZones/**/*.cs",
       "words": [
         "Posix",
         "posix",
@@ -1621,4 +1621,4 @@
     }
   ],
   "allowCompoundWords": true
-}
+}