Update some .cvsignore files for building on Windows.

dlls/avicap32/.cvsignore

 Makefile
+avicap32.dll
 avicap32.dll.dbg.c
 avicap32.spec.c
+avicap32.spec.def

dlls/comcat/.cvsignore

 Makefile
+comcat.dll
 comcat.dll.dbg.c
 comcat.spec.c
+comcat.spec.def

dlls/comctl32/.cvsignore

 Makefile
+comctl32.dll
 comctl32.dll.dbg.c
 comctl32.spec.c
+comctl32.spec.def
 rsrc.res

dlls/crtdll/.cvsignore

 Makefile
+crtdll.dll
 crtdll.dll.dbg.c
 crtdll.spec.c
+crtdll.spec.def

dlls/dinput/.cvsignore

 Makefile
+dinput.dll
 dinput.dll.dbg.c
 dinput.spec.c
+dinput.spec.def

dlls/dplayx/.cvsignore

 Makefile
+dplayx.dll
 dplayx.dll.dbg.c
 dplayx.spec.c
+dplayx.spec.def
 version.res

dlls/imagehlp/.cvsignore

 Makefile
+imagehlp.dll
 imagehlp.dll.dbg.c
 imagehlp.spec.c
+imagehlp.spec.def

dlls/mapi32/.cvsignore

 Makefile
+mapi32.dll
 mapi32.dll.dbg.c
 mapi32.spec.c
+mapi32.spec.def

dlls/netapi32/.cvsignore

 Makefile
+netapi32.def
+netapi32.dll
 netapi32.dll.dbg.c
 netapi32.spec.c

dlls/olesvr/.cvsignore

 Makefile
 olesvr.spec.c
+olesvr32.dll
 olesvr32.dll.dbg.c
 olesvr32.spec.c
+olesvr32.spec.def

dlls/richedit/.cvsignore

 Makefile
+riched32.dll
 riched32.dll.dbg.c
 riched32.spec.c
+riched32.spec.def

dlls/shdocvw/.cvsignore

 Makefile
+shdocvw.dll
 shdocvw.dll.dbg.c
 shdocvw.spec.c
+shdocvw.spec.def

dlls/shlwapi/.cvsignore

 Makefile
+shlwapi.dll
 shlwapi.dll.dbg.c
 shlwapi.spec.c
+shlwapi.spec.def

dlls/tapi32/.cvsignore

 Makefile
+tapi32.dll
 tapi32.dll.dbg.c
 tapi32.spec.c
+tapi32.spec.def

dlls/twain/.cvsignore

 Makefile
+twain_32.dll
 twain_32.dll.dbg.c
 twain_32.spec.c
+twain_32.spec.def