[Discussion] how to model GLIBC version for conan packages

[SSE4]

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/cc @rdeterre @bc-lee @elizagamedev

this is more generic version of https://github.com/conan-io/conan/issues/3963 related issues: https://github.com/bincrafters/community/issues/296 https://github.com/bincrafters/community/issues/267

historically, conan didn't model glibc version, relying only on compiler version for binary compatibility checks. this causes some issues in the past, as binaries compiled with the same compiler weren't compatible across various linux distributions. for instance, if we compiled libraries or executables via GCC 4.8 on Ubuntu 12.04, these executables and libraries fail to run/link on CentOS 7 machines. same situation with other popular Linux distributions, like RHEL, Fedora, etc.