Adds svg-react-loader to gatsby webpack config (and removes svgs from the built-in url-loader config).
The rule plugin option can be used to pass rule options. If either include or exclude options are present, svg-react-loader will use them and url-loader will be reenabled with the inverse.
The following uses svg-react-loader to process svgs from a path matching /assets/, and url-loader to process svgs from everywhere else.
{
resolve: 'gatsby-plugin-react-svg',
options: {
rule: {
include: /assets/
}
}
}