Out of the box on other platforms, alacritty reports `TERM=alacritty`. This requires an updated terminfo/termcap database that contains an entry for `alacritty`. Prior to this change, when you ssh into a FreeBSD machine using a default configuration of alacritty on a client system, it reports this in `motd(5)`:
```
No entry for terminal type "alacritty";
using dumb terminal settings.
```
This change adds a termcap entry for alacritty, converted from the upstream-provided `alacritty.info` using `tic -C`.
Signed-off-by: Siva Mahadevan <me@svmhdvn.name>
MFC After: 3 days
(cherry picked from commit 7a4c662f407f074287f42cf0652dff74a294bf0e)