feat: Add support for host functions

Not optimised (yet)...

Signed-off-by: Gordon Smith <GordonJSmith@gmail.com>

Author: GordonSmith

.github/instructions/general.instructions.md

@@ -0,0 +1,8 @@
+---
+applyTo: '**'
+---
+# General Instructions
+
+- This repository is a modern c++ project. 
+- It uses CMake to build and test the project
+- The goal of the project is to create host bindings for the [WebAssembly Component Model](ref/component-model/README.md)

.github/instructions/wamr.instructions.md

@@ -0,0 +1,7 @@
+---
+applyTo: '**'
+---
+
+# WAMR Instructions
+
+- This code uses the [wasm-micro-runtime](https://github.com/bytecodealliance/wasm-micro-runtime) to host a wasm guest.

.gitmodules

@@ -7,3 +7,6 @@
 [submodule "ref/vscode-wasm"]
 	path = ref/vscode-wasm
 	url = git@github.com:microsoft/vscode-wasm.git
+[submodule "ref/wasm-micro-runtime"]
+	path = ref/wasm-micro-runtime
+	url = git@github.com:bytecodealliance/wasm-micro-runtime.git