Purpose:
This will allow for easily automating periodic updates to
"cacrt_all.pem" file.
Note:
For now newly created "cacrt_local.pem" contains single "DST Root CA X3"
which we are keeping to manage compatibility with endpoints like
"howsmyssl.com". Please note this Root CA is expired and is not part of
Mozilla’s NSS root certificate store.
Adds the ESP certificate bundle feature that enables users to bundle a
root certificate bundle together with their application.
Default bundle includes all Mozilla root certificates
Closes IDF-296
