Log message:
swirc: update to 3.3.4.

## [3.3.4] - 2022-05-04 ##
- **Added** a TLS server (to be used in a future version)
- **Added** config option `mouse` (defaults to **no**)
- **Added** config option `server_cipher_suite`
- **Added** creation of OpenSSL scripts
- **Added** event 335 (`RPL_WHOISBOT`)
- **Added** global hashfunctions
- **Added** preprogrammed IRC network
  [AlphaChat](https://www.alphachat.net/)
- **Added** scrolling using the mouse
- **Added** theme item:
  - `nicklist_my_nick_color`
  - `whois_bot`
- **Added** translations
- **Changed** the statusbar to display readline stats
- **Converted**
  - `commands/services.c` -> `commands/services.cpp`
  - `config.c` -> `config.cpp`
- **Defined** `SLASH` once
- **Defined** and made use of:
  - `UNUSED_PARAM()`
  - `UNUSED_VAR()`
  - `colorarray_t`
  - `g_beginthread_failed`
  - `g_received_welcome`
  - `usage_t`
- **Fixed** bugs discovered with protocol fuzzing
- Handle PRIVMSGs from "my" server
- Handle truncation of ICB messages, i.e. allow longer messages than
  `ICB_MESSAGE_MAX`.
- Improved scrolling
- Made refactoring to multiple files
- Moved the names hash table modify API
- Print PRIVMSGs to irc channels from users that aren't in them. (No
  lookup error.)
- Reduced code duplication
- Reformatted and reindented files

Log message:
swirc: needs openssl.

Log message:
swirc: enable verbose build and honour CC and CXX.

Log message:
chat/swirc: import swirc-3.3.3.

Swirc is a BSD licensed, console based and lightweight ICB and IRC
client written in C/C++, whose goals are to be portable and secure.