Fixed many compilation erros

signal1.h0 renamed to signal1.h
sysdep1.h0 renamed to sysdep1.h
removed arith.h from codes
RadialUndistort: added include library path "..\lib\jpeg\src"
RadialUndistort: Line 202: "index" changed to "strchr"
Bundle2PMVS: added <direct.h> to provide "mkdir" utility for windows
jpeg: All files recopied into project directory