Windows compatability for examples

[LuNoX]

Because of line ending issues the test configuration examples would fail every time. This PR solves the issue.

New output from a windows machine:

g++ -std=c++11 -O0 -g3 -ggdb -fno-eliminate-unused-debug-types -Wall -Wextra -pe
dantic -I../src -o ztxtpipe ztxtpipe.cpp -lz
g++ -std=c++11 -O0 -g3 -ggdb -fno-eliminate-unused-debug-types -Wall -Wextra -pe
dantic -I../src -o zpipe zpipe.cpp -lz
g++ -std=c++11 -O0 -g3 -ggdb -fno-eliminate-unused-debug-types -Wall -Wextra -pe
dantic -I../src -o zc zc.cpp -lz
diff -q ztxtpipe.cpp <(./ztxtpipe <ztxtpipe.cpp)
diff -q ztxtpipe.cpp <(gzip <ztxtpipe.cpp | ./ztxtpipe)
diff -q ztxtpipe.cpp <(gzip -9 <ztxtpipe.cpp | ./ztxtpipe)
diff -q <(cat ztxtpipe.cpp ztxtpipe.cpp) <(cat ztxtpipe.cpp ztxtpipe.cpp | gzip
| ./ztxtpipe)
diff -q <(cat ztxtpipe.cpp ztxtpipe.cpp) <({ gzip <ztxtpipe.cpp; gzip <ztxtpipe.
cpp; } | ./ztxtpipe)
diff -q zpipe.cpp <(./zpipe <zpipe.cpp)
diff -q zpipe.cpp <(gzip <zpipe.cpp | ./zpipe)
diff -q zpipe.cpp <(gzip -9 <zpipe.cpp | ./zpipe)
diff -q <(cat zpipe.cpp zpipe.cpp) <(cat zpipe.cpp zpipe.cpp | gzip | ./zpipe)
diff -q <(cat zpipe.cpp zpipe.cpp) <({ gzip <zpipe.cpp; gzip <zpipe.cpp; } | ./z
pipe)
diff -q <(<zpipe.cpp | gzip) <(<zpipe.cpp | gzip | gzip | ./zpipe)
diff -q zc.cpp <(./zc <zc.cpp)
diff -q zc.cpp <(./zc - <zc.cpp)
diff -q zc.cpp <(./zc - - <zc.cpp)
diff -q zc.cpp <(./zc zc.cpp)
diff -q zc.cpp <(<zc.cpp gzip | ./zc)
diff -q zc.cpp <(<zc.cpp gzip | ./zc -)
diff -q zc.cpp <(<zc.cpp gzip | ./zc - -)
diff -q zc.cpp <(<zc.cpp ./zc -c | zcat)
diff -q zc.cpp <(<zc.cpp ./zc -c - | zcat)
diff -q zc.cpp <(<zc.cpp ./zc -c - - | zcat)
diff -q zc.cpp <(./zc -c zc.cpp | zcat)
diff -q <(cat zc.cpp zc.cpp) <(./zc -c zc.cpp - <zc.cpp | zcat)
diff -q <(cat zc.cpp zc.cpp) <(./zc -c - zc.cpp <zc.cpp | zcat)
diff -q <(cat zc.cpp zc.cpp) <(./zc -c zc.cpp zc.cpp | zcat)
diff -q <(cat zc.cpp zc.cpp) <({ ./zc -c zc.cpp; ./zc -c zc.cpp; } | zcat)
diff -q <(cat zc.cpp zc.cpp) <({ gzip <zc.cpp; ./zc -c zc.cpp; } | zcat)
diff -q <(cat zc.cpp zc.cpp) <({ ./zc -c zc.cpp; gzip <zc.cpp; } | zcat)
all passed 

[LuNoX]

It appears this behavior was previously fixed in ERGO-Code/HiGHS#793 but the fix was never merged here only in the HiGHS repo. It also makes clear that always opening in binary will cause problems on macOS. As such I will amend to only open in binary on windows systems