Fix states in TLS 1.3 connect and accept to be monotonically increasing
by 1.
Always have a new state after a buffer is constructed to be sent.
Add non-blocking support into TLS benchmark and support TLS 1.3.
* Added new internal function `wolfSSL_GetMaxRecordSize`.
* Modified tls_bench to use dynamic buffer based on max record size.
* Added comment for DTLS maxFragment calculation.
* Feature update for tls_bench test that will allow passing in command line arguments that enable test features.
* Fix type conversion errors.
* Fixed use of uninitialized data. Declare DH arrays as const.
* Fixed some `tls_bench` build issues with various configure options.
* Moved the `WOLFSSL_PACK` and `WC_NORETURN` macros into types.h.
* Added support for `__builtin_bswap32` and `__builtin_bswap64`. Since the performance of the builtins varries by platform its off by default, but can be enabled by customer using `WOLF_ALLOW_BUILTIN`. Quick check on x86 showed the 32-bit swap performance matched, but 64-bit swap was slower.
