tools/configure.c: Add missing '\n' in printf statement
tools/configure.c: Add missed -g option to getopt() string
tools/configure.c and tools/configure.sh: Fix Windows native pre-build kconfig-conf incompability. Looks like prebuilt Windows native kconfig-conf interprets "..\apps" as "..apps" (possibly '\a' as escape-sequence) so expand winnative path to double-backslashed variant "..\\apps".
tools/mkdeps.c: Fix '\0' missing in MinGW. Implicit bug. There are 2 cases.
1. Under Linux. The code works as planned: '\n' is always replaced with '\0' due to sprintf fills n-1 bytes and reaches buffer length limit.
2. Under Windows/MinGW. There is memory corruption. Seems like it`s a bug inside MinGW/snprintf. Snprintf fills consecutively "oldbase",' ',"str",'\n', but does not inserts trailing '\0' instead of '\n'. And when next append() occurs, strlen() returns garbage-appended "oldbase".
So the fix just removes '\n' and reserves space for '\0'.
tools/link.bat: Fix .fakelink creation
configs/Makefile and tools/Config.mk: Move single file copy to the new function COPYFILE. This fixes the Windows native build case when there is no cp or cp does not recognize Windows paths.
It works fine for the first time compilation, but if we execute:
$ touch config/boardname/src/Pin.cxx
And execute "make" it will not detect that Pin.cxx was modified. I think there is some other place I should modify, but I didn't find it.
