[Solid_hgc] how to access HGC detector

[Zhiwen Zhao]

Dear All

To clarify some questions about how to access HGC detector we had in the 
meeting yesterday, here is some info from Whit at HallA engineering
https://hallaweb.jlab.org/wiki/index.php/SoLID_Engineering_Integration_and_CAD#Whit.27s_note_on_2016.2F02.2F26

We hope to setup new meeting with HallA engineering soon to further 
address these questions and concerns.
Stay tuned.

Zhiwen