Feature Request: Add Param For Passing Gem Install Options

[seanmalloy]

Affected Puppet, Ruby, OS and module versions/distributions

• Puppet: 4.6.3
• Ruby: 2.1.9p490
• Distribution: RHEL 7
• Module version: 2.4.0

How to reproduce (e.g Puppet code you use)

What are you seeing

There is not a parameter to pass gem install options. I need to be able to use a proxy to install
the hiera-eyaml gem.

What behaviour did you expect instead

An option would exist to pass gem install options when installing the hiera-eyaml gem.

Output log

n/a

Any additional information you'd like to impart

I am willing to implement this new feature.

[alexjfisher]

@seanmalloy I ran into the same problem and have submitted a PR #193

Works for me. Let us know if you have any issues.