Implement a least breaking approach to slash commands (#39)

* Most slash command support completed, needs some debugging (and reindent)

* Implement a ctx.send helper for slash commands

* Add group command support

* Add Option converter, fix default optional, fix help command

* Add client.setup and move readying commands to that

* Implement _FakeSlashMessage.from_interaction

* Rename normmal_command to message_command

* Add docs for added params

* Add slash_command_guilds to bot and decos

* Fix merge conflict

* Remove name from commands.Option, wasn't used

* Move slash command processing to BotBase.process_slash_commands

* Create slash_only.py

Basic example for slash commands

* Create slash_and_message.py

Basic example for mixed commands

* Fix slash_command and normal_command bools

* Add some basic error handling for registration

* Fixed converter upload errors

* Fix some logic and make an actual example

* Thanks Safety Jim

* docstrings, *args, and error changes

* Add proper literal support

* Add basic documentation on slash commands

* Fix non-slash command interactions

* Fix ctx.reply in slash command context

* Fix typing on Context.reply

* Fix multiple optional argument sorting

* Update ctx.message docs to mention error instead of warning

* Move slash command creation to BotBase

* Fix code style issues with Black

* Rearrange some stuff and add flag support

* Change some errors and fix interaction.channel fixing

* Fix slash command quoting for *args

Co-authored-by: iDutchy <42503862+iDutchy@users.noreply.github.com>
Co-authored-by: Lint Action <lint-action@samuelmeuli.com>

discord/ext/commands/view.py

@@ -25,7 +25,7 @@ DEALINGS IN THE SOFTWARE.
 from .errors import UnexpectedQuoteError, InvalidEndOfQuotedStringError, ExpectedClosingQuoteError
 
 # map from opening quotes to closing quotes
-_quotes = {
+supported_quotes = {
     '"': '"',
     "‘": "’",
     "‚": "‛",
@@ -44,7 +44,7 @@ _quotes = {
     "《": "》",
     "〈": "〉",
 }
-_all_quotes = set(_quotes.keys()) | set(_quotes.values())
+_all_quotes = set(supported_quotes.keys()) | set(supported_quotes.values())
 
 
 class StringView:
@@ -130,7 +130,7 @@ class StringView:
         if current is None:
             return None
 
-        close_quote = _quotes.get(current)
+        close_quote = supported_quotes.get(current)
         is_quoted = bool(close_quote)
         if is_quoted:
             result = []