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>

CHANGELOG.md

@@ -9,6 +9,7 @@
 
 ### API-Changes
 - jsonrpc: add python API for webxdc updates #3872
+- Add ffi functions to retrieve `verified by` information #3786
 
 ### Fixes
 - Do not add an error if the message is encrypted but not signed #3860
@@ -26,8 +27,6 @@
 - Only send the message about ephemeral timer change if the chat is promoted #3847
 - Use relative paths in `accounts.toml` #3838
 
-### API-Changes
-
 ### Fixes
 - Set read/write timeouts for IMAP over SOCKS5 #3833
 - Treat attached PGP keys as peer keys with mutual encryption preference #3832