Selecting all present players can be tedious,
especially if they are many or when multiple
messagess need to be sent.
Add two new buttons to the toolbar that allow
pre-filling the form with all connected players,
or all players.
Add translations and icons for those new tools.
Given that send_message_dialog() fills the form with previous inputs
if there are any, we can also provide data to pre-fill the first form.
This can be useful for preset dialogs, like an "all players" dialog
with all players already input.
Add an initial data parameter to send_message_dialog() and add it
to the message list if it is provided.
This is the initial version of the module, for Foundry v12.
It allows GMs to write and send messages to players via socketlib,
storing an history of those messages, and displaying them on the player's
side, with some potential flair, and some controls in the settings.
This *does not work* with Foundry v13, as the toolbar registration process
has changed.
