Add verifier information (#3839)

* add verifier information

* cleanup

Co-authored-by: bjoern <r10s@b44t.com>

* finish name change

* simple improvements & new ffi

* fixs

Co-authored-by: bjoern <r10s@b44t.com>
Co-authored-by: septias <xxsebastian.kleahnxx@gmail.com>

src/chat.rs

@@ -3562,6 +3562,7 @@ mod tests {
     use crate::constants::{DC_GCL_ARCHIVED_ONLY, DC_GCL_NO_SPECIALS};
     use crate::contact::Contact;
     use crate::receive_imf::receive_imf;
+
     use crate::test_utils::TestContext;
 
     #[tokio::test(flavor = "multi_thread", worker_threads = 2)]