* Implemented 128,192 and 256 ECB and CBC for YaSSL
* Implemented 128,192 and 256 ECB,CBC,cfb1,cfb8,cfb128 and ofb modes for OpenSSL
* added an enum session/global/config/command line variable block_encryption_mode that takes <cipher>-<bits>-<block-mode> values
* added an function to generate random byte strings using the ssl library random generator : RANDOM_BYTES(bytelen).
* added an optional second parameter for the initialization vector to aes_encrypt() and aes_decrypt().
* updated config editor to use the proper extended C apis.
* added tests
* fixed the type of the opmode session variable holder
* fixed test case failures and compilation errors on linux
* fixed IV buffers to account for the terminating 0
* now IV is checked only if needed by the cipher/block size combo.
* if IV is not needed by the combo and is supplied a warning is generated
* handled bug #18259229
* Added extra tests created during QA