query: Add support for --numberify.

bean-query compatibility.

conservancy_beancount/reports/query.py

@@ -256,6 +256,11 @@ fiscal year of the begin date.
         help="""Format of report to generate. Choices are
 {format_arg.choices_str()}. Default is guessed from your output filename
 extension, or 'text' if that fails.
+""")
+    parser.add_argument(
+        '--numberify', '-m',
+        action='store_true',
+        help="""Separate currency amounts into numeric columns by currency
 """)
     parser.add_argument(
         '--output-file', '-O', '-o',
@@ -339,7 +344,13 @@ def main(arglist: Optional[Sequence[str]]=None,
         args.stop_date,
         [rewrite.RewriteRuleset.from_yaml(path) for path in args.rewrite_rules],
     )
-    shell = BQLShell(is_interactive, load_func, stdout, args.report_type.value)
+    shell = BQLShell(
+        is_interactive,
+        load_func,
+        stdout,
+        args.report_type.value,
+        args.numberify,
+    )
     shell.on_Reload()
     if query is None:
         shell.cmdloop()