* ingela/ssl/alert-error-enhancment/OTP-15943:
  ssl: Enhance error handling

* peterdmv/ssl/fix-cert-error-handling/OTP-15900:
  ssl: Fix handling of certificate decoding problems

* peterdmv/ssl/fix-sign-algs-cert/OTP-15913:
  ssl: Backport fix for signature_algorithms_cert

* ingela/ssl/TLS-hibernate-bug/OTP-15910:
  ssl: Fix hibernation bug

# Conflicts:
#	lib/ssl/src/tls_connection.erl

Handle the ILLEGAL_PARAMETER alert that may be returned from ssl_alert:decode/3
for gracefull shutdown, try of ...catch will/should not handle this case it is
only handles the case that TM should not happen!

This commit fixes interoperability problems with openssl when
the TLS 1.3 server is using the option signature_algs_cert.

In such cases the signature_algorithms_cert extension was encoded
as a signature_algorithms extension and openssl s_client returned
an Illegal Parameter Alert due to its filtering of extension
duplicates.

* peterdmv/ssl/fix-handshake-hello/ERL-975/OTP-15888:
  ssl: Fix negative tests in ssl_basic_SUITE
  ssl: Fix run_client_error/1 in ssl_test_lib
  ssl: Fix ssl_handshake:extension_value/1

* peterdmv/ssl/tls12-java11-interop/ERL-973/OTP-15887:
  ssl: Add interop test
  ssl: Improve handling of signature algorithms