Colorize text on win32 console

Text input line color based on code by "spior"
Main colorize function based on Sys_AnsiColorPrint in sys_main.c
win32 colour console: don't show colour controls. UNTESTED.
Fix win32 dedicated input line printing to backlog

Use to write win32 input line using WriteConsole then overwrite by
CON_Print, so when CON_Print removes color format characters the end of original input line was visable.

"hi ^1guys" use to be shown as "hi guysys" in the console backlog.
Fix win32 input left on buffer and overwritten

The input line on the console screen buffer was moved up a line and
overwritten by CON_Print.

Remove input line when console shutdown as well.
Make win32 console cursor visible