add 3rd party folders back

3rd/libomt/README.md

@@ -0,0 +1,38 @@
+# libomt
+
+libomt is a C wrapper for the libomnet library.
+
+libomt uses the .NET Native AOT Deployment to build a native shared library with C exports
+
+## Getting Started
+
+Prebuilt binaries of libomt for both Windows and MacOS is available in the Releases page for libomtnet here:
+https://github.com/openmediatransport/libomtnet/releases
+
+## Requirements
+
+libvmx shared library (included in the prebuilt binaries)
+
+.NET 8.0 for Windows, Linux or MacOS (.NET not required unless compiling from source)
+
+## Compiling
+
+1. Setup a folder structure with both libomtnet and libomt as follows:
+   
+[root]
+
+/libomtnet
+
+/libomt
+
+2. The build process will reference and build the .NET Standard library in the ../libomtnet folder
+3. Run the build script for the desired platform from the build directory.
+4. A shared library and a .lib file should be generated in the platform native directory.
+On Windows this is usually bin\Release\net8.0\win-x64\native
+
+## Using the library in your project
+
+1. Include the libomt.h file in your C/C++ application
+2. Add the libomt.lib library
+
+Note: libomtnet.dll is not needed as it is automatically built into the libomt shared library.