* Added new build option for TPM provisioning (`--enable-provisioning` on by default).
* Added new `wolfTPM2_CreatePrimaryKey_ex` and `WOLFTPM2_PKEY` that supports returning creation ticket/hash.
* Added key templates for initial device (IDevID) and attestation keys (IAK).
* Extended `create_primary` example to support creation or IDevID and IAK.
* Added new policy hash helper API `wolfTPM2_PolicyHash`
* Switch handle/nvIndex string parsing to use `strtoul`.
ZD 18347
* Fix bug with NV name after first write (only appears when using HMAC session).
* Add new API `wolfTPM2_UnsetAuthSession` to unset auth index for a session and save off the nonce from the TPM. This allows auth to be unset/set again with the same session.
* Cleanup in the NV API's for unsetting of the auth to be handled by caller, not in API.
David Garske