Adding lib/parser.js to package.json to fix CLI tools

[KurtPreston]

Purpose / Goal

Fix for issue #112: CLI tools won't work unless lib/parser.js is included when installing fast-xml-parser.

Type

[x]Bug Fix
[ ]Refactoring / Technology upgrade
[ ]New Feature

[coveralls]

Coverage remained the same at 97.487% when pulling 07605a0 on KurtPreston:fixPackageFiles into a2436b6 on NaturalIntelligence:master.

[amitguptagwl]

Thanks for the PR.

[amitguptagwl]

I'm not sure how did you conclude that lib/parser.js is required. But I had to remove this code.