Only calculate options and package info once (#1087)

Author: ecraig12345

change/beachball-eae7cb7f-6b39-44eb-bae7-d0d1d9e84205.json

@@ -0,0 +1,7 @@
+{
+  "type": "minor",
+  "comment": "Calculate options and PackageInfos once, and pass around between functions. This should significantly improve perf in large repos.",
+  "packageName": "beachball",
+  "email": "elcraig@microsoft.com",
+  "dependentChangeType": "patch"
+}