feat: build libssh2 for multiple openssl backends#11

eddymoulton wants to merge 6 commits intooctopus/masterOctopusDeploy/libgit2sharp.nativebinaries:octopus/masterfrom

octopus/em/build-for-multiple-opensslsOctopusDeploy/libgit2sharp.nativebinaries:octopus/em/build-for-multiple-opensslsCopy head branch name to clipboard