maint/dev ~ (scripts) add EditorConfig linter

package.json

@@ -87,6 +87,8 @@
 		"lint": "run-s --silent +:max-node-8 && shx echo \"[lint] WARN Lint checks skipped [for NodeJS < v10]\" 1>&2 || run-p --print-name \"lint:*\"",
 		"# lint:commits # check for commit flaws (using `commitlint` and `cspell`)": "",
 		"lint:commits": "run-s --silent _:v_tag:missing || run-p --silent \"_:lint:commits.new:*\"",
+		"# lint:editorconfig # check for EditorConfig format flaws (using `editorconfig-checker`)": "",
+		"lint:editorconfig": "editorconfig-checker -disable-max-line-length -exclude \"(build|dist|vendor)/.*\"",
 		"# lint:lint # check for code 'lint' (using `eslint`)": "",
 		"lint:lint": "eslint .",
 		"# lint:markdown # check for markdown errors (using `remark`)": "",
@@ -170,6 +172,7 @@
 		"coveralls": "^3.0.5",
 		"cross-spawn": "^7.0.3",
 		"cspell": "^4.2.7",
+		"editorconfig-checker": "^3.3.0",
 		"eol-converter-cli": "^1.0.8",
 		"eslint": "^7.17.0",
 		"eslint-config-prettier": "^7.1.0",