mctools : add debugging print

- add a counter for moves in debug
- cleaning final printing in multicore :
now on verbosity 3...
parameters. Store array as array_c

- storing array/matrix/view as array_c
the container that give value semantics to a view
(for cython initially).

- it allows to have reference in python, view or value in C++.

- to be tested in more details.

- NB : matrix and vector are collapsed to array of rank 2 and 1.
--> is it a good idea ? to be discussed again.

- extract_strict : corrected to extract the *collapsed type* from the dict
and return the T (or we can not retrieve an object from python  !)
gf/imtime. write evaluator

- added closest_mesh_pt and evaluation by interpolation
mesh/linear : add get_closest_mesh_pt_index draft
fix data_proxies assign_no_resize for vector