Honor contextElement attribute

[ValeriyTitov]

Im trying to find a way to correlate facts with each other.

According article 2.3.2 on xbrl.org

1. Every has-hypercube arc MUST have an @xbrldt:contextElement attribute.
2. According to the xbrldt XML Schema, the @xbrldt:contextElement attribute MUST have one of the values segment or scenario.
3. The optional @xbrldt:closed attribute on has-hypercube arcs

[JeffFerguson]

Ah, yes, the Dimension spec. The short answer is that there is no Dimension spec implementation in Gepsio today.

The longer answer is wrapped in my overall vision for Gepsio, which should probably go into a blog post, in which the various auxiliary specs would be implemented as assemblies that would "hook into" and "sit on top of" the original Gepsio assembly, so that there would be something like this:

• JeffFerguson.Gepsio.dll: the implementation of the XBRL spec
• JeffFerguson.Gepsio.Formulas.dll: the implementation of the XBRL Formulas spec
• JeffFerguson.Gepsio.Dimensions.dll: the implementation of the XBRL Dimensions spec

I need to write that up and outline the plan for Dimensions.