Add ProviderStatus.DATABASE_CREATION_TIMESTAMP

Also stop sending CONTACTS_DATABASE_CREATED

Test: adb shell am instrument -w -e size small com.android.providers.contacts.tests
Test: adb shell am instrument -w -e size medium com.android.providers.contacts.tests
Test: adb shell am instrument -w -e size large com.android.providers.contacts.tests

Bug 33390320

Change-Id: I135fc66aee70d31d0547aa3e8bbcbf3f7ccf514f
6 files changed