MINOR: ssl: clean unused ACLs declarations

Now those ACLs are automatically created from pattern fetch declare.
MINOR: ssl: adds fetchs and ACLs for ssl back connection.

Adds ssl fetchs and ACLs for outgoinf SSL/Transport layer connection with their
docs:
ssl_bc, ssl_bc_alg_keysize, ssl_bc_cipher, ssl_bc_protocol, ssl_bc_unique_id,
ssl_bc_session_id and ssl_bc_use_keysize.
MINOR: ssl: merge client's and frontend's certificate functions.
MINOR: ssl: adds ssl_f_sha1 fetch to return frontend's certificate fingerprint

ssl_f_sha1 is a binary binary fetch used to returns the SHA-1 fingerprint of
the certificate presented by the frontend when the incoming connection was
made over an SSL/TLS transport layer. This can be used to know which
certificate was chosen using SNI.
MINOR: ssl: adds sample converter base64 for binary type.

The new converter encode binary type sample to base64 string.

i.e. : ssl_c_serial,base64
MINOR: ssl: convert to binary ssl_fc_unique_id and ssl_bc_unique_id.

Previously ssl_fc_unique_id and ssl_bc_unique_id return a string encoded
in base64 of the RFC 5929 TLS unique identifier. This patch modify those fetches
to return directly the ID in the original binary format. The user can make the
choice to encode in base64 using the converter.

i.e. : ssl_fc_unique_id,base64