added partial solution to find_symbol()

   find_symbol: function() {

      const svgFileList = require.context(

         './images/FGDC_svgs/', true, /\.svg$/

      ); // Load all files in listed folder and all sub directories

      console.log(svgFileList); // Testing: Print to console

      const svgFileKeys = svgFileList.keys();  // Set varaible to 'key' containing all file paths and names

      for( let index = 0; index < svgFileKeys.length; index++ ) // Loop through all file names listed in key

      {

         var svgFileName = svgFileKeys[ index ]; // Set variable name to file path at current index

         if( svgFileName.split(/[\\/]/).pop() == '25.82.svg') // Isolate file name from the file's path and compare to search criteria

         {

            var svgFile = svgFileKeys[ index ]; // Set file variable to path of matching file

            console.log(svgFile); // Testing: Print to console

         }

         // Add else statement to handle situations where a file isn't located

      }

      // Figure out how to grab the contents of the located file. 

         // Issue: browser security features generally prevent local file access

   },

   symbolize_with_icons: function(geolayer, map){