react-map-gl - Added missing types (#40891)

* Added missing types

Fixed missing types according to https://github.com/uber/react-map-gl/blob/5.1-release/examples/viewport-animation/src/app.js
FlyToInterpolator class was missing it's constructor props and transitionDuration property couldn't have 'auto' value

* Added tests changed types

* Added my name to Definitions by

* Reverted the auto-formatted codes, changed 'type' to 'interface'

* Removed Unnecessary semicolon

* Removed Unnecessary semicolons

* Reverted formatting changes on test file

types/react-map-gl/index.d.ts

@@ -4,6 +4,7 @@
 //                 Fabio Berta <https://github.com/fnberta>
 //                 Sander Siim <https://github.com/sandersiim>
 //                 Otto Urpelainen <https://github.com/oturpe>
+//                 Arman Safikhani <https://github.com/Arman92>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 // TypeScript Version: 3.0
 
@@ -126,7 +127,7 @@ export interface ViewportProps {
     minZoom: number;
     maxPitch: number;
     minPitch: number;
-    transitionDuration?: number;
+    transitionDuration?: number | 'auto';
     transitionInterpolator?: TransitionInterpolator;
     transitionInterruption?: TRANSITION_EVENTS;
     transitionEasing?: EasingFunction;
@@ -215,7 +216,16 @@ export class LinearInterpolator extends TransitionInterpolator {
     constructor(transitionProps?: string[]);
 }
 
-export class FlyToInterpolator extends TransitionInterpolator {}
+export interface FlyToInterpolatorProps {
+    curve?: number;
+    speed?: number;
+    screenSpeed?: number;
+    maxDuraiton?: number;
+}
+
+export class FlyToInterpolator extends TransitionInterpolator {
+    constructor(props?: FlyToInterpolatorProps);
+}
 
 export interface ViewStateChangeInfo {
     viewState: ViewportProps;
@@ -239,7 +249,7 @@ export interface InteractiveMapProps extends StaticMapProps {
     onViewStateChange?: ContextViewStateChangeHandler;
     onViewportChange?: ContextViewportChangeHandler;
     onInteractionStateChange?: (state: ExtraState) => void;
-    transitionDuration?: number;
+    transitionDuration?: number | 'auto';
     transitionInterpolator?: TransitionInterpolator;
     transitionInterruption?: TRANSITION_EVENTS;
     transitionEasing?: EasingFunction;