curl tool: reviewed code moved to tool_*.[ch] files

packages/Symbian/group/curl.mmp

src/Makefile.inc

src/Makefile.vc6

src/main.c

src/setup.h

src/tool_bname.c

src/tool_bname.h

src/tool_cfgable.h

src/tool_convert.h

src/tool_dirhie.c

src/tool_dirhie.h

src/tool_doswin.c

src/tool_doswin.h

src/tool_mfiles.c

src/tool_mfiles.h

src/tool_vms.c

src/tool_vms.h

src/urlglob.c

src/vc6curlsrc.dsp