Initial client scaffold

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

config/betterpingdisplay-client.toml

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+#The color of the ping display text, written in hex format. Default: #A0A0A0
+#
+#Has no effect if 'autoColorText' is set to true
+textColor = "#A0A0A0"
+#Customize the display text of the ping display
+#Must contain a '%d', which will be replaced with the ping number
+#Example: '%dms' will transform into '123ms' if the player's ping is 123
+#Default: %dms
+textFormatString = "%dms"
+#Whether to also draw the default Minecraft ping bars
+renderPingBars = false
+#Whether to color a player's ping based on their latency.
+#Example: low latency = green, high latency = red
+#If this setting is true, then the 'textColor' setting is ignored
+autoColorText = true