new function to append application info

[ZeWaka]

title

from

/proc/foo()
	call_ext(TRACY_DLL_PATH, "init")()
	call_ext(TRACY_DLL_PATH, "app_info")("[world.name] - [world.byond_version].[world.byond_build]")
	spawn (2 SECONDS)
		call_ext(TRACY_DLL_PATH, "app_info")("2 seconds after first")
		spawn (2 SECONDS)
			call_ext(TRACY_DLL_PATH, "app_info")("4 seconds after first")

fixes #4

[ZeWaka]

im aware this should be app info this was just kind of a test