pgsql: Reorganize functions in be-secure-openssl.c

Reorganize functions in be-secure-openssl.c

Move the functions within the file so that public interface functions come
first, followed by internal functions. Previously, be_tls_write was first,
then internal stuff, and finally the rest of the public interface, which
clearly didn't make much sense.

Per Andres Freund's complaint.

Branch
------
master

Details
-------
http://git.postgresql.org/pg/commitdiff/48d50840d53eb62842c0d9b54eab9cd7c9a3a46d

Modified Files
--------------
src/backend/libpq/be-secure-openssl.c | 1457 +++++++++++++++++----------------
1 file changed, 734 insertions(+), 723 deletions(-)