Remove PkgConfig dependence on Windows

Ammar Nejatirequested to merge
removePkgConfigDep_Win into develop

PkgConfig works properly only on Linux. On Windows, it is part of the MSYS2 platform and there is no guarantee that it works properly; it is also not necessary.

Instead of using PkgConfig, a CMake module FindPkgVersionWin is introduced to find the version of a package from a config file.

find_pkg_version_win function is used to find the version of cerf package under Windows.

Related to issue #133 (closed)

Edited by Ammar Nejati

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