rustfmt: update configuration

.rustfmt.toml → rustfmt.toml

-force_multiline_blocks = true
-license_template_path = ".license.template"
 match_block_trailing_comma = true
-report_fixme = "Unnumbered"
+force_multiline_blocks = true
 report_todo = "Unnumbered"
+report_fixme = "Unnumbered"
 struct_lit_single_line = false
+trailing_comma = "Vertical"
+license_template_path = ".license.template"