wolfcrypt shim for wireguard userspace tools#1

Open

douzzer wants to merge 2 commits intomasterfrom

douzzer-20200804

Commits on Aug 6, 2020

add wolfcrypto_shim.{c,h}, and tweaks to Makefile and curve25519.h, so that make WOLFCRYPT=1 substitutes wolfssl for the bundled crypto and kernel RNG.
douzzer
committed

Commits on Sep 18, 2020

curve25519_generate_public_wolfshim(): update name of wc_curve25519_make_pub().
douzzer
committed