TextWrapper used to try to ensure a message would wrap correctly on the
client by counting the width of the characters in pixels and wrapping
before hitting that limit. This was needed because the client would lose
color information when wrapping and could not handle long lines of text.
Now that both of these problems are solved in the client we can replace
TextWrapper with simple code to split the message into multiple packets on
newlines and ensure chat colors carry across to the new packet.
This fix eliminates crashes related to color markers being at end-of-line, and also makes colors persist across line breaks.
- The broadcast message is split up in multiple packets, one per line
- Color markers are reorganized, so that color 'sticks across lines'
- The wrapping method calculates the *rendered* line length. Thus, if the user has a weird font, it might look weird.
