Added Emergency to ElectionPhase (#3707)

Link to new field:

https://github.com/paritytech/substrate/blob/6242d37f43ec5aa9b6131a8e61b8d4e71b063907/frame/election-provider-multi-phase/src/lib.rs#L337

packages/types/src/interfaces/staking/definitions.ts

@@ -90,7 +90,8 @@ const phragmen = {
     _enum: {
       Off: null,
       Signed: null,
-      Unsigned: '(bool, BlockNumber)'
+      Unsigned: '(bool, BlockNumber)',
+      Emergency: null
     }
   },
   ElectionResult: {

packages/types/src/interfaces/staking/types.ts

@@ -104,6 +104,7 @@ export interface ElectionPhase extends Enum {
   readonly isSigned: boolean;
   readonly isUnsigned: boolean;
   readonly asUnsigned: ITuple<[bool, BlockNumber]>;
+  readonly isEmergency: boolean;
 }
 
 /** @name ElectionResult */