Include sdk versioning proto in permission apex

Allows SdkExtensions to inspect its version to decide what the extension
sdk version is on-device.

Bug: 188787081
Test: m com.android.permission and inspect
Merged-In: Icf8b31a77fca75dd6900e9f605a08153fa6e018f
Change-Id: Icf8b31a77fca75dd6900e9f605a08153fa6e018f