Add translation for DG14 (Handwritten Signature)
Add ECDSA as supported signature algorithm
Add write access selection to CHAT dialog
Set TLS min version to 1.1
Make CardAPDU.getData never return null values and fix readFile for EstEID

The EstEID always returns 9000 when reading form a file. This means it can not be determined
when there is nothing else to read. The trick is to check if the last read returned 0 bytes and use
this as cancellation criteria.
Revert "Make CertificateAuthorityReference in EAC1Output a hex string"

This reverts commit 3be4d74654392f10b8b94314de38783de21f73d2.