Feature: Add utility function to read server-side resolver from another resolver

[brandonroberts]

The load resolver can be called from within another resolver by accessing it through the route config.

export const routeMeta: RouteMeta = {
  resolve: {
    data: async(route) => {
      // call server load resolver for this route from another resolver
      const data = await route.routeConfig?.resolve?.['load']?.(route);

      return { ...data };
    }
  }
}

We can add a utility function for this named getLoadResolver and use it as getLoadResolver(route).

import { getLoadResolver } from '@analogjs/router';

export const routeMeta: RouteMeta = {
  resolve: {
    data: async(route) => {
      // call server load resolver for this route from another resolver
      const data = await getLoadResolver(route);

      return { ...data };
    }
  }
}

Originally posted by @brandonroberts in #1039 (comment)