remove cube2 suffix from candidates

thursday/candidates/dlib.py

@@ -1,5 +1,5 @@
 from dlib import find_min_global
-from .randomcube2 import another_random_cube
+from .random import another_random_cube
 from ..utils import wrap_untrustworthy, final
 
 

thursday/notwacube.py

@@ -1,8 +1,8 @@
-from .candidates.dlibcube2 import dlib_cube
-from .candidates.evolopycube2 import make_evolopy
-from .candidates.nevergradcube2 import NEVERGRAD2_OPTIMIZERS
-from .candidates.nloptcube2 import nlopt_neldermead_cube
-from .candidates.fcmaescube2 import (
+from .candidates.dlib import dlib_cube
+from .candidates.evolopy import make_evolopy
+from .candidates.nevergrad import NEVERGRAD2_OPTIMIZERS
+from .candidates.nlopt import nlopt_neldermead_cube
+from .candidates.fcmaes import (
     make_biteopt,
     make_csma,
     make_fcmaes,
@@ -12,9 +12,9 @@ from .candidates.fcmaescube2 import (
     make_gclde,
     make_lclde,
 )
-from .candidates.notwacube2 import make_birect, make_mercury, make_soo
-from .candidates.randomcube2 import another_random_cube, quasirandom_cube
-from .candidates.scipycube2 import (
+from .candidates.notwa import make_birect, make_mercury, make_soo
+from .candidates.random import another_random_cube, quasirandom_cube
+from .candidates.scipy import (
     make_shgo,
     scipy_basinhopping_cube,
     scipy_bfgs_2j_cube,