Changes made to test.h to allow interop of PSK with OpenSSL.
Changes to allow server to pre-generate key share and perform other
operations at later time.
Fix ChaCha20 code header to have bigger state to support assembly code
for AVX1.
Fix Curve25519 code to use define instead.
Change Curve25519 to memset all object data on init.
Change Poly1305 to put both sizes into one buffer to avoid a second call
to wc_Poly1305Update().
Added WOLFSSL_START and WOLFSSL_END API and calls to show time of
protocol message function enter and leave to analyse performance
differences.
Moved Curve25519 code in KeyShare extension out of general ECC code.
0b47811c46