[FEATURE] To be able to configure Clan motto, web link at url of banner

[Yakonche]

The idea would be to have only one configuration file to configure the whole welcome screen (for example: Survival_WelcomeScreen.ini).

Adding a function that allows you to change url according to a predefined list every x seconds would be interesting.

The file could be made up as follows :

[URLBanner]
update_banner=30000 # time expressed in milliseconds for more precision
list_banner=http://art.tripwirecdn.com/TestItemIcons/MOTDServer.png, https://i.imgur.com/A0LdqFQ.png # place a single banner so that there is no change / update of the banner

[ClanMotto]
Welcome to my Zedternal Server ! <font color="#0055A4">Hosted</font> <font color="#FFFFFF">in</font> <font color="#EF4135">France</font>
Number of custom maps : <font color="#FFFAFA">500</font> | Server IP : <font color="#FFFAFA">85.168.60.156:7783</font>
Total Kills = <font color="#00BFFF">{{ millify(server_kills) }}</font> | Total Dosh = <font color="#00BFFF">{{ millify(server_dosh) }}</font>

[MOTD]
<font color="#FF0000">Top Players by Kills :</font>
{% for player in top_kills[0:12] -%}
{{loop.index}}. {{player.username|truncate(10)|replace('<','?')}} <font color="#42C535">[{{millify(player.score)}}]</font>{% if loop.index is divisibleby 3 %}
{% endif %}{%- endfor %}

[URLLink]
update_link=30000 # time in ms
list_link=https://kf2-ma.th3-z.xyz, https://github.com/th3-z/kf2-magicked-admin