Drop support for botan < 2.0
fix #3274
Improve the handling of the biboudb.hpp dependencies
Apply all the clang-tidy performance-* fixes
Apply all the clang-tidy misc-* fixes
Refactoring louloulibs and cmake
Use OBJECT libraries
Remove the louloulibs directory
Write FOUND variables in the cache
Update the verify_certificate_chain code to work with botan >= 1.11.34 as well
Show off, with some variadic templates, for the logger module
Add a TEMPORARY work-around for botan 1.11.29
Rename BasicCredentialManager
Support a trusted SHA1 fingerprint to be configured for each IRC server
Make the CA file configurable
Provide an adhoc option to let user pass the cert verif for some IRC servers
Fix the build without botan, caused by credentials_manager
Verify TLS certificate with the given hostname, instead of a hardcoded one
Verify the remote TLS certificates using the system-wide trusted CAs