* ingela/inets/http_server-ssl-peer-cert/OTP-13510:
  inets: Prepare for release
  inets: Add peer_cert to ESI environment

* ingela/ssl/config-signature-algs/OTP-13261:
  ssl: Prepare for release
  ssl: Add option signature_algs

* ingela/ssl/3-4-tuples-cipher-suites-mix/OTP-13511:
  ssl: Corrections to cipher suite handling

It was not possible to mix ssl 3 and 4 tuple cipher suites in the
ciphers option.

Some ssl_cipher:suite/1 clauses wrongly returned 3-tuples that
should have been 4 tuples

In TLS-1.2 The signature algorithm and the hash function algorithm
used to produce the digest that is used when creating the digital signature
may be negotiated through the signature algorithm extension RFC 5246.

We want to make these algorithm pairs configurable.
In connections using lower versions of TLS these algorithms are
implicit defined and can not be negotiated or configured.

DTLS is updated to not cause dialyzer errors, but needs to get a real
implementation later.