Failure to read the config file should terminate the application

[Geod24]

% npm start -- -c does_not_exist.yamlisnothere

> stoa@0.0.0 prestart /Users/geod24/projects/bpfk/stoa
> npm run json2ts


> stoa@0.0.0 json2ts /Users/geod24/projects/bpfk/stoa
> json2ts -i src/modules/data/schemas/ -o src/modules/data/types/


> stoa@0.0.0 start /Users/geod24/projects/bpfk/stoa
> NODE_ENV=production nodemon -w src -d 1 -x ts-node src/main.ts "-c" "does_not_exist.yamlisnothere"

[nodemon] 2.0.4
[nodemon] to restart at any time, enter `rs`
[nodemon] watching path(s): src/**/*
[nodemon] watching extensions: ts,json
[nodemon] starting `ts-node src/main.ts -c does_not_exist.yamlisnothere`
ENOENT: no such file or directory, open '/Users/geod24/projects/bpfk/stoa/does_not_exist.yamlisnothere'

The app shouldn't keep running and should shut down instead, so we can detect it from the process manager.

[Geod24]

Fixed in #128