[POC/WIP] Redux integration

[ohadlevy]

this adds basic example on how one can use redux in manageiq.

this does not actually solve any problem at the moment - so please don't merge :)

[ohadlevy]

/cc @martinpovolny hopefully this fits what you had in mind when you asked for redux in miq ;)

[ohadlevy]

updated to include changes from #1919

[miq-bot]

Checked commit ohadlevy@137f9de with ruby 2.2.6, rubocop 0.47.1, and haml-lint 0.20.0
1 file checked, 3 offenses detected

app/views/layouts/_header.html.haml

• ⚠️ - Line 2 - Avoid defining class in attributes hash for static class names
• ⚠️ - Line 2 - Use hash rockets syntax.
• ⚠️ - Line 2 - Use hash rockets syntax.

[ohadlevy]

closing in favor of #2504