replace terminaltables with rich tables.

allow rich to handle all console output.

util.check_mark is now used to pass back colourless check/cross marks if NO_COLOR is set or --style/SLOBS_STYLE was not set.

src/slobs_cli/console.py

@@ -0,0 +1,21 @@
+"""module for console output handling."""
+
+import asyncclick as click
+from rich.console import Console
+
+out = Console()
+err = Console(stderr=True, style='bold red')
+
+
+def highlight(ctx: click.Context, text: str) -> str:
+    """Highlight text for console output."""
+    if ctx.obj['style'].name == 'no_colour':
+        return text
+    return f'[{ctx.obj["style"].highlight}]{text}[/{ctx.obj["style"].highlight}]'
+
+
+def warning(ctx: click.Context, text: str) -> str:
+    """Format warning text for console output."""
+    if ctx.obj['style'].name == 'no_colour':
+        return text
+    return f'[magenta]{text}[/magenta]'