build(root): added initial meson build system implimentation and mk script

we will use meson as the build system for this project. Added a rough outline of this which builds source, libraries, and links them to tests (along with the google test library for testing). meson will be setup and compiled with ./mk.

meson.build

@@ -0,0 +1,9 @@
+project('4DSSE', 'cpp', version: '0.0.1a', default_options: ['cpp_std=c++23'])
+
+# Add default visibility for all C++ targets
+add_project_arguments('-fvisibility=default', language: 'cpp')
+add_project_arguments('-Wl,-export_dynamic', language: 'cpp')
+
+
+subdir('src')
+subdir('tests')