CMake Support

[dylanetaft]

Add CMake support. This works cross platform, tested on Ubuntu, MSYS2 + CLANG on Windows, and Visual Studio on Windows.

Works with FetchContent, ie

include(FetchContent)

FetchContent_Declare(
mimetic
GIT_REPOSITORY "https://github.com/dylanetaft/mimetic"
OVERRIDE_FIND_PACKAGE
)
find_package(mimetic REQUIRED)

or ExternalProject in a superbuild.
ExternalProject_Add(
mimetic
GIT_REPOSITORY https://github.com/dylanetaft/mimetic
CMAKE_ARGS
-DCMAKE_INSTALL_PREFIX=${CMAKE_INSTALL_PREFIX}
-DCMAKE_PREFIX_PATH=${CMAKE_PREFIX_PATH}
-DBUILD_STATIC_LIBS=ON
-DBUILD_SHARED_LIBS=OFF
)

Also can build a pkg-conf .pc for integration with other build environments, but only tested with shared lib.

This cmake only builds library, does not build test cases or example or doxygen docs.

[dylanetaft]

The benefit to this is easier integration into projects cross platforms as CMake is popular.