Resonator on map

Change:
Add "RESONATOR_DISPLAY_ZOOM_LEVEL" to control minimum zoom level resonator will display
Add layerGroup "resonatorsLayers" to draw resonators on it.
Add "window.resonators" to store references to resonators on map

Resonator will have guid of portal with ".11" or ".12" replaced with ".r0"~".r7"
Add function "window.renderResontor" to draw resonators
"window.renderPortal" will call "window.renderResontor" before add portal to portalsLayers
Change "window.removeByGuid" to handle resonators
Change "window.cleanUp" to handle resonators cleanup

Resonator render code base on sorgo's work
https://github.com/breunigs/ingress-intel-total-conversion/pull/46