Use gradle to integrate custom icon font

Per
https://github.com/oblador/react-native-vector-icons#option-with-gradle-recommended.
This should theoretically keep the font up to date in Android when we update
the font file.

android/app/build.gradle

@@ -96,7 +96,12 @@ apply from: "../../node_modules/react-native/react.gradle"
 
 // add vector icons to project
 project.ext.vectoricons = [
-    iconFontNames: [ 'MaterialCommunityIcons.ttf', 'MaterialIcons.ttf' ]
+    iconFontsDir: "../../assets/fonts/",
+    iconFontNames: [
+        'MaterialCommunityIcons.ttf',
+        'MaterialIcons.ttf',
+        'inaturalisticons.ttf'
+    ]
 ]
 
 apply from: "../../node_modules/react-native-vector-icons/fonts.gradle"

src/components/INatIcon.js

@@ -3,20 +3,21 @@
  * Usage: <INatIcon name="icon-name" size={20} color="#4F8EF7" />
  */
 
-import createIconSet from 'react-native-vector-icons/lib/create-icon-set';
+import createIconSet from "react-native-vector-icons/lib/create-icon-set";
+
 export const glyphMap = {
   "notifications-bell": 57344,
   "hamburger-menu": 57345,
   "plus-sign": 57346,
   "compass-rose": 57347,
   "pen-and-paper": 57348,
-  "microphone": 57350,
-  "camera": 57355,
+  microphone: 57350,
+  camera: 57355,
   "triple-dots": 57352,
   "close-button-x": 57351,
   "comments-filled-in": 57353,
-  "checkmark": 57354,
-  "pencil": 57356,
+  checkmark: 57354,
+  pencil: 57356,
   "ios-people-updated-2": 57357,
   "cv-sparklylabel": 57358,
   "close-button-circle": 57349,
@@ -30,11 +31,11 @@ export const glyphMap = {
   "identification-solid": 57366
 };
 
-const iconSet = createIconSet(glyphMap, 'inaturalisticons', 'inaturalisticons.ttf');
+const iconSet = createIconSet( glyphMap, "inaturalisticons", "inaturalisticons.ttf" );
 
 export default iconSet;
 export const {
   Button,
   getImageSource,
-  getImageSourceSync,
+  getImageSourceSync
 } = iconSet;