Fix openSSL/add https for curl/download
Make curl to use https.
misc: fix easybuild.sh to properly link bundled openssl
misc: disabled OpenSSL support in easybuild.sh
Note: the latest libs code (https://github.com/etlegacy/etlegacy-libs/commit/8159d2b8a01670c65ec2e18b3d5d1730d302ff62) fixes some issue with Debian, but breaks the ability to build the code for Mingw/Win developers.
The cmake code has to be rewritten entirely to implement openssl correctly.