[Halla12_software] solid detector dimension and layout wiki page

[Zhiwen Zhao]

Hi, folks

To give some guide lines for the solid design, I put a page to summarize 
detector dimension and layout at
https://hallaweb.jlab.org/wiki/index.php/Solid_Detector_Dimension

The more detailed information is located in the GEMC geometry perl 
scripts at SVN.
https://clas12svn.jlab.org/repos/trunk/clas12/gemc/production/database_io/solid/geometry/

The main database "solid_geometry", perl scripts and the wiki page are 
and will be kept in sync.

I am working on producing a similar table for CLEO.

Please let me know any comment.

Zhiwen