add cad_geometry, io op_nurbs and graphics
fix bug evaluate. now using __call__ function
update caid with the new igakit distrib
start validation tests
rename cad to caid and add setup.py file
rename cad directory to caid
add extraction module in caid.utils
remove .pyc files
add connectivity and bezier extraction: needs validation
add tests
numbering for 1d and 2d without bc validated
remove connectivity/boundary_condition_1/2/3D.py files
compute connectivity for bezier extraction
local matrices for bezier extraction Ok for 1-patch, KO for multipatchs
fix bug on multiptachs
bezier exctraction export OK for 2D
bezier extraction format OK as input in Jorek
add element index and nen per element in the connectivity export
add core package for bspline evaluation
bezier extraction output for JOREK