access monitos and actuators from tuning tools

@kparasch @GamelinAl , Ivan Morozov, Julien 

tuning tools objects shuold give access to the pyAML name of the array used but also to the magnets directly as a short cut to sr.design.get_magnets('arrayname')

for example:

`orm.vcor_array.get()`

instead of:

`sr.design.get_magnets(orm.vcor_array)`
 
a short cut could be usefull
