functions to support it.

initialize it. Initial support for application added public key ASN1.

*_prn.c files in each algorithm directory.

key ASN1 handling through a single EVP_PKEY_ASN1_METHOD structure and move
the spaghetti algorithm specific code to a single ASN1 module for each
algorithm.

Submitted by: David Hartman <david_hartman@symantec.com>

Submitted by: Peter Sylvester

"make errors".

        -Wmissing-prototypes -Wcomment -Wformat -Wimplicit -Wmain -Wmultichar
        -Wswitch -Wshadow -Wtrigraphs -Werror -Wchar-subscripts
        -Wstrict-prototypes -Wreturn-type -Wpointer-arith  -W -Wunused
        -Wno-unused-parameter -Wuninitialized

[most importantly] put back dependencies accidentaly eliminated in
check-in #13342.

- hide the EC_KEY structure definition in ec_lcl.c + add
  some functions to use/access the EC_KEY fields
- change the way how method specific data (ecdsa/ecdh) is
  attached to a EC_KEY
- add ECDSA_sign_ex and ECDSA_do_sign_ex functions with
  additional parameters for pre-computed values
- rebuild libeay.num from 0.9.7

(Also improve util/ck_errf.pl script, and occasionally
fix source code formatting.)

EC_GROUP_new_by_nid -> EC_GROUP_new_by_curve_name

	EC_GROUP_get_nid -> EC_GROUP_get_curve_name
	EC_GROUP_set_nid -> EC_GROUP_set_curve_name

for now (it was broken anyway)

("perl util/ck_errf.pl */*.c */*/*.c" still reports many more.)

  and BN_get_sign
- implement BN_set_negative as a function
- always use "#define BN_is_zero(a) ((a)->top == 0)"