Building Minizip 1.x instead of Minizip 2.x

Minizip is a dependency of XLSX I/O and until now, I was just using the
most recent version I found (2.9.2), but XLSX I/O is written for the
Minizip 1.x series, not 2.x. Somehow it didn't cause a crash on my
computer!!! I think XLSX I/O's CMake is instructed to look into system
directories by default when it doesn't find the directories in the given
places. And because I had installed Minizip on my operating system, it
did't complain.

Upon trying the build on their systems, Yahya, Raul and Zahra reported a
failure in the build of XLSX I/O which was due the to the problem above (we
were installing the wrong version of Minizip!).

With this commit, this has been fixed by installing the 1.x series of
Minizip (whish is actually installed within zlib!).

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