Addition of the meson building tools

Author: jolivetr

meson.build

@@ -0,0 +1,16 @@
+project('okada4py', 'cpp', version : '1.0.1', default_options : ['cpp_std=c++11'])
+
+py3 = import('python').find_installation('python')
+
+numpy_include = run_command(py3, '-c', 'import numpy; print(numpy.get_include()+"/numpy")').stdout().strip()
+
+src = ['src/dc3d.cpp', 'src/disloc3d.cpp', 'src/okada92_py3.cpp']
+
+okada92 = py3.extension_module('_okada92',
+  sources : src,
+  include_directories : include_directories('src', numpy_include),
+  install : true,
+  install_dir : 'okada4py'
+)
+
+install_data('src/__init__.py', install_dir : 'okada4py')