Change log style callbacks to also work in release mode

[Vortex2Oblivion]

If you wanted to detect when a log from the flixel debugger would be detected in release mode, like I do, there is currently no way to do this due to log style callbacks not being run in release mode.
In order to do this I had to extend LogFrontEnd and then replace the LogFrontEnd in FlxG with the untyped keyword due to it being unable to be written to normally.

[Vortex2Oblivion]

also when trying to get the data from a log style there is a high chance that it will just crash with no error or give an error like this from what ive seen

[Geokureli]

At first i was gonna say this is a breaking change, in case someone depended on callback being used in debug only, but we depercated callbackFunction and added callback in 5.9.0 which is still unreleased. This means we can have callback work on debug, but not callbackFunction

[Vortex2Oblivion]

also when trying to get the data from a log style there is a high chance that it will just crash with no error or give an error like this from what ive seen

For anyone wondering why this was crashing it was because I was running it on a thread