Add minimum and maximum for random number generator.
Add open current directory button to test_menu2.
Add some new functions for directories in imgui_functions.
Comment more code in imgui_functions, clean it up a bit.
Add some new items into imgui_defines.h
Add float to string, address to string, generate random number to misc_util.
Add template to convert all values that work with it to a string.
Move defines.h into utils, cleanup main_menu a bit.
Add some items to pch fil.
Add imgui defines for quicker access to imgui functions.
Add cheat menu font to options, add credits.txt.
