chore: add editorconfig-checker configuration file

Author: kgryte

etc/editorconfig-checker/.editorconfig_checker.json

@@ -0,0 +1,29 @@
+{
+  "Verbose": false,
+  "Debug": false,
+  "IgnoreDefaults": true,
+  "SpacesAfterTabs": false,
+  "NoColor": false,
+  "Exclude": [
+    "\\/data\\/",
+    "data\\/",
+    "\\.html$",
+    "\\.html\\.txt$",
+    "\\.md$",
+    "\\.md\\.txt$",
+    "\\.svg$",
+    "\\.svg\\.txt$",
+    "\\.xml$",
+    "\\.xml\\.txt$"
+  ],
+  "AllowedContentTypes": [],
+  "PassedFiles": [],
+  "Disable": {
+    "EndOfLine": false,
+    "Indentation": false,
+    "IndentSize": false,
+    "InsertFinalNewline": false,
+    "TrimTrailingWhitespace": false,
+    "MaxLineLength": false
+  }
+}

etc/editorconfig-checker/README.md

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+<!--
+
+@license Apache-2.0
+
+Copyright (c) 2024 The Stdlib Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+-->
+
+# editorconfig-checker
+
+> [editorconfig-checker][editorconfig-checker] configuration.
+
+<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
+
+<section class="intro">
+
+This directory contains [editorconfig-checker][editorconfig-checker] configuration files.
+
+</section>
+
+<!-- /.intro -->
+
+<!-- Section to include notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="notes">
+
+</section>
+
+<!-- /.notes -->
+
+<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="links">
+
+[editorconfig-checker]: https://github.com/editorconfig-checker/editorconfig-checker
+
+</section>
+
+<!-- /.links -->