Added Syntax Highlighting in VS Code

[reececomo]

Here's a quick VS Code extension that adds ifdef-loader syntax highlighting:

🔌 ifdef-loader-syntax-highlighting

https://marketplace.visualstudio.com/items?itemName=reececomo.ifdef-loader-syntax-highlighting

For block level colors use highlight or see #52

[reececomo]

Source code is here if you want to build yourself https://github.com/reececomo/ifdef-loader-syntax-highlighting:

git clone git@github.com:reececomo/ifdef-loader-syntax-highlighting
cd ifdef-loader-syntax-highlighting
npm run build
npm run install-extension