Choose path to refresh

I'd love to have a feature to have a certain path to refresh on a specific changed file.

E.g. I use the plugin with a CMS that stores its content and configuration in txt & yaml files.
- When that content changes, I want to reload all pages *but not* the CMS panel
- When configuration changes, I want to reload only the panel pages

Paths to refresh could also be defined via glob matching.

Example configuration:

```js
plugins: [
FullReload([
{
watch: ["site/{layouts,snippets,templates}/**/*", "content/**/*"],
reload: ["!/panel", "*"]
},
{
watch: ["site/blueprints/**/*"],
reload: ["/panel"]
}
])
],
```

The issue names no files or tests; start by reviewing the plugin's current FullReload configuration and file-watching behavior. Define how glob-based watch rules map changed files to reload paths, including the panel exclusion and the two example cases, then add coverage for both behaviors.

Written by the indexing model from the issue text.