rewrite: Initial rewrite skeleton.

Remove modules that will no longer be required.
Move pending modules to pending-rewrite folders.

bot/modules/pending-rewrite/user_config/__init__.py

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+from .module import module
+
+from . import commands

bot/modules/pending-rewrite/user_config/commands.py

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+from .module import module
+
+from settings import UserSettings
+
+
+@module.cmd(
+    "mytz",
+    group="Personal Settings",
+    desc=("Timezone used to display prompts. "
+          "(Currently {ctx.author_settings.timezone.formatted})"),
+)
+async def cmd_mytimezone(ctx):
+    """
+    Usage``:
+        {prefix}mytz
+        {prefix}mytz <tz name>
+    Setting Description:
+        {ctx.author_settings.settings.timezone.long_desc}
+    Accepted Values:
+        Timezone names must be from the "TZ Database Name" column of \
+        [this list](https://en.wikipedia.org/wiki/List_of_tz_database_time_zones).
+        For example, `Europe/London`, `Australia/Melbourne`, or `America/New_York`.
+        Partial names are also accepted.
+    Examples``:
+        {prefix}mytz Europe/London
+        {prefix}mytz London
+    """
+    await UserSettings.settings.timezone.command(ctx, ctx.author.id)

bot/modules/pending-rewrite/user_config/module.py

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+from LionModule import LionModule
+
+
+module = LionModule("User_Config")