Adds support for versioned profiles

* Add zkgroup library

* tsconfig.json: Prettier wants to mess it up. :0(

* Initial take on versioned profile fetches

* Fix up the logging in getProfiles() - warn instead of error

* Introduce new VERSIONED_PROFILE_FETCH flag

* Update zkgroup dependency to v0.5.0

* Fix lint-deps - new zkgroup library brought in new debug dep

* ts/zkgroup: Introduce some commonly-used helper functions

* Update to latest serverPublicParams

* Don't derive profileKeyVersion unless flag is set

ts/util/index.ts

@@ -9,6 +9,7 @@ import { isFileDangerous } from './isFileDangerous';
 import { makeLookup } from './makeLookup';
 import { migrateColor } from './migrateColor';
 import { missingCaseError } from './missingCaseError';
+import * as zkgroup from './zkgroup';
 
 export {
   arrayBufferToObjectURL,
@@ -22,4 +23,5 @@ export {
   migrateColor,
   missingCaseError,
   Registration,
+  zkgroup,
 };