fix relative imports

codes/params/rparams.py

 import numpy as np
-from .matrixShaping import (complex_to_real, matrix_to_flat,
+from codes.params.matrixShaping import (complex_to_real, matrix_to_flat,
                              real_to_complex, flat_to_matrix)
 
 def mf2rParams(mf_model):

codes/solvers.py

-from .params.rparams import mf2rParams, rParams2mf
+from codes.params.rparams import mf2rParams, rParams2mf
 import scipy
 from functools import partial
-from .tb.tb import addTb
+from codes.tb.tb import addTb
 import numpy as np