Experimental support for Audit Logs (#1403)

* start audit logs

* make better var types so gawdl3y doesn't shit on this

* add constructor stuff

* make more changes

* add entry creation

* add methods

* make it all work hopefully

* aaa

* aaaa

* i wish i could test this locally

* fix users, guild when i feel like it

* make guild prop non-enumerable

* make better types

* change nouns

* e

* Update GuildAuditLogs.js

* Update GuildAuditLogs.js

* Update GuildAuditLogs.js

* eek

* Update GuildAuditLogs.js

* Update GuildAuditLogs.js

* friggin trailing spaces

* Update GuildAuditLogs.js

* docs!

* Update GuildAuditLogs.js

* reason stuff

* Update GuildAuditLogs.js

* Update GuildAuditLogs.js

* support before/after for pagination

* Update Guild.js

* Update GuildAuditLogs.js

* mfw using github web editor

* fix build

* Update Guild.js

* amazing cache fuckery shit evil

* cool stuff

* make building audit logs nicer

* ban endpoint stuff

* dox

* <.<

src/util/Permissions.js

@@ -203,6 +203,7 @@ Permissions.FLAGS = {
   MANAGE_CHANNELS: 1 << 4,
   MANAGE_GUILD: 1 << 5,
   ADD_REACTIONS: 1 << 6,
+  VIEW_AUDIT_LOG: 1 << 7,
 
   READ_MESSAGES: 1 << 10,
   SEND_MESSAGES: 1 << 11,