def to_wgs84
      ll = to_latlng(@easting, @northing, @type)
      lat_lng = LatLng.new(latitude: ll[:latitude], longitude: ll[:longitude], type: @type)
      lat_lng.to_WGS84
    end
def to_wgs84
      ll = to_latlng(@easting, @northing, @type)
      lat_lng = LatLng.new(latitude: ll[:latitude], longitude: ll[:longitude], type: @type)
      lat_lng.to_WGS84
    end
Takes OSGB36 or TM75 (Irish national grid) Easting/Northing coords
 and returns WGS84 Latitude and Longitude