Includes mmctl into the mono-repo (#23091)

* Includes mmctl into the mono-repo

* Update to use the new public module paths

* Adds docs check to the mmctl CI

* Fix public utils import path

* Tidy up modules

* Fix linter

* Update CI tasks to use the new file structure

* Update CI references

server/cmd/mmctl/docs/mmctl_command_create.rst

@@ -0,0 +1,62 @@
+.. _mmctl_command_create:
+
+mmctl command create
+--------------------
+
+Create a custom slash command
+
+Synopsis
+~~~~~~~~
+
+
+Create a custom slash command for the specified team.
+
+::
+
+  mmctl command create [team] [flags]
+
+Examples
+~~~~~~~~
+
+::
+
+    command create myteam --title MyCommand --description "My Command Description" --trigger-word mycommand --url http://localhost:8000/my-slash-handler --creator myusername --response-username my-bot-username --icon http://localhost:8000/my-slash-handler-bot-icon.png --autocomplete --post
+
+Options
+~~~~~~~
+
+::
+
+      --autocomplete               Show Command in autocomplete list
+      --autocompleteDesc string    Short Command Description for autocomplete list
+      --autocompleteHint string    Command Arguments displayed as help in autocomplete list
+      --creator string             Command Creator's username, email or id (required)
+      --description string         Command Description
+  -h, --help                       help for create
+      --icon string                Command Icon URL
+      --post                       Use POST method for Callback URL
+      --response-username string   Command Response Username
+      --title string               Command Title
+      --trigger-word string        Command Trigger Word (required)
+      --url string                 Command Callback URL (required)
+
+Options inherited from parent commands
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+::
+
+      --config string                path to the configuration file (default "$XDG_CONFIG_HOME/mmctl/config")
+      --disable-pager                disables paged output
+      --insecure-sha1-intermediate   allows to use insecure TLS protocols, such as SHA-1
+      --insecure-tls-version         allows to use TLS versions 1.0 and 1.1
+      --json                         the output format will be in json format
+      --local                        allows communicating with the server through a unix socket
+      --quiet                        prevent mmctl to generate output for the commands
+      --strict                       will only run commands if the mmctl version matches the server one
+      --suppress-warnings            disables printing warning messages
+
+SEE ALSO
+~~~~~~~~
+
+* `mmctl command <mmctl_command.rst>`_ 	 - Management of slash commands
+