Add `ignore` filter to muncher rules to ignore files like NodeJS modules

[rimutaka]

Example:

"modulo04/node_modules/emoji-regex/index.js",
"modulo04/node_modules/@babel/plugin-transform-typeof-symbol/LICENSE",
"modulo02/node_modules/date-fns/locale/fr/index.d.ts",
"modulo02/node_modules/validator/lib/isMACAddress.js",
"modulo08/tdd/node_modules/@types/istanbul-lib-report/package.json",
"modulo02/node_modules/through/package.json",
"modulo02/node_modules/rxjs/_esm2015/internal/util/root.js",
"modulo04/node_modules/caniuse-lite/data/features/svg.js",
"modulo02/node_modules/@sentry/types/dist/index.d.ts",
"modulo04/node_modules/webpack/lib/wasm/WebAssemblyJavascriptGenerator.js",

There should be a way to filter them out before any further processing.

A temp workaround was added in #2 via stackmuncher/stm@32c42b3