Implement permissions v2 (#56)

* Bump nyxx_interactions to 4.2.0

* Deprecated AbstractCheck.permissions

* Remove unneeded overrides of deprecated members

* Migrate existing checks to permissions v2

* Migrate command registration to permissions v2

* Update documentation

* Better organise the checks file structure

* Add PermissionsCheck

* Fix typo

* Release 4.2.0-dev.0

CHANGELOG.md

@@ -1,3 +1,16 @@
+## 4.2.0-dev.0
+__Deprecations__:
+- Deprecated `AbstractCheck.permissions` and all associated features.
+
+__New features__:
+- Added `AbtractCheck.allowsDm` and `AbstractCheck.requiredPermissions` for integrating checks with permissions v2.
+- Updated `Check.deny`, `Check.any` and `Check.all` to work with permissions v2.
+- Added `PermissionsCheck`, for checking if users have a specific permission.
+
+__Miscellaneous__:
+- Bump `nyxx_interactions` to 4.2.0.
+- Added proper names to context type checks if none is provided.
+
 ## 4.1.2
 __Bug fixes__:
 - Fixes an issue where slash commands nested within text-only commands would not be registered

lib/nyxx_commands.dart

@@ -1,7 +1,7 @@
 /// A framework for easily creating slash commands and text commands for Discord using the nyxx library.
 library nyxx_commands;
 
-export 'src/checks/checks.dart' show AbstractCheck, Check, GuildCheck, RoleCheck, UserCheck;
+export 'src/checks/checks.dart' show AbstractCheck, Check;
 export 'src/checks/context_type.dart'
     show
         ChatCommandCheck,
@@ -11,6 +11,9 @@ export 'src/checks/context_type.dart'
         MessageCommandCheck,
         UserCommandCheck;
 export 'src/checks/cooldown.dart' show CooldownCheck, CooldownType;
+export 'src/checks/guild.dart' show GuildCheck;
+export 'src/checks/permissions.dart' show PermissionsCheck;
+export 'src/checks/user.dart' show RoleCheck, UserCheck;
 export 'src/commands.dart' show CommandsPlugin;
 export 'src/commands/chat_command.dart' show ChatCommand, ChatGroup, CommandType;
 export 'src/commands/interfaces.dart'