CMake buildsystem

The project's name is jegp. The library's target is jegp::jegp.

Options

Option	Description	Default value
`JEGP_TEST`	Test the library.	`OFF`
`JEGP_DOC_PDF`	Make a PDF of the documentation.	`OFF`
`JEGP_DOC_HTML`	Generate HTML of the documentation.	`OFF`

Run these commands (reproduced below) from the root of your project's clone.

cmake -E make_directory build
cmake -E chdir build cmake .. -DJEGP_TEST=ON
cmake --build build
cmake -E chdir build ctest
cmake --install build