Windows Crypto libs linking

[mylogin]

No description provided.

[yhirose]

@mylogin, the changes in Makefile are ok, but I don't think the changes in httplib.h are not necessary. Please let me know why you modified httplib.h.

[mylogin]

In case MSVC, libraries (crypt32.lib, cryptui.lib) are always linked, regardless of the set macro CPPHTTPLIB_OPENSSL_SUPPORT, this is not necessary if the macro is not set

[yhirose]

@mylogin, thanks for the answer. It's a good improvement.

Another thing that I notice is that LIBS includes not only linker options, but also compiler related options such as -D and -I which don't make sense to me. Since I don't need Windows support in Makefile, could you revert the changes in Makefile?

[mylogin]

git revert performed or better to do a reset last commits?

[yhirose]

@mylogin, you are right. Actually reset is better for keeping the git history clean. Thanks!

[yhirose]

Thanks for your fine contribution!