bundlesize-no-exit v0.18.3

Forked from: https://github.com/siddharthkp/bundlesize

The only differences are 1. this does not call process.exit(1) when a glob pattern does not match any files. (https://github.com/jackyef/bundlesize/commit/808611f9f0e91d34358ff66a655079be0e6ebb77) 2. this does not match the same file twice even if multiple glob patterns match a same file. It only uses the first match (https://github.com/jackyef/bundlesize/commit/13b04e0640e453d3a0f904153cecfb6db480b72a) 3. this uses brotli size by default, instead of gzip (https://github.com/jackyef/bundlesize/commit/e5ab50575b05e44c514fde8b9497f824caa17393)