Revamped Surface of Revolution objects 6 and 7

Implemented rationalized code that uses cylinit for the initialization
and hence generates contra and covariant vectors. Although it appears
to be working as a boundary definition, flux collection is not yet
implemented fully.
Completion of srvgplot code for plotting general surface of revolution
Remove pp_ and sr_ structures and refer everything to ostructure
Surface of Revolution Flux Accumulation seems to be working.
Fixed/completed SoR area calculation using zscale/rscale.
Fix error in world3contra. Prior to this SoR was unreliable.
Implement storage orscale and r-scaling in SoR
Updated geometry tests for SoR etc.
Reorganized RefManual into a doc/ directory with figures

Also fixed bug in objplot that used incorrect mf_obj numbering to
determine whether to do objplot. Made objplot plot all anyway.