Add more float aliases (#842)

Author: shssf

dpnp/dpnp_algo/dpnp_algo.pyx

@@ -205,11 +205,11 @@ Internal functions
 """
 cdef DPNPFuncType dpnp_dtype_to_DPNPFuncType(dtype):
 
-    if dtype in [numpy.float64, 'float64']:
+    if dtype in [numpy.float64, numpy.float, 'float64', 'float', 'f8']:
         return DPNP_FT_DOUBLE
     elif dtype in [numpy.float32, 'float32', 'f4']:
         return DPNP_FT_FLOAT
-    elif dtype in [numpy.int64, 'int64', 'int', int]:
+    elif dtype in [numpy.int64, numpy.int, 'int64', 'int', int]:
         return DPNP_FT_LONG
     elif dtype in [numpy.int32, 'int32']:
         return DPNP_FT_INT

dpnp/dpnp_iface_types.py

@@ -41,6 +41,7 @@
     "bool_",
     "complex128",
     "complex64",
+    "default_float_type",
     "dtype",
     "float",
     "float16",
@@ -73,6 +74,8 @@
 int = numpy.int
 longcomplex = numpy.longcomplex
 
+def default_float_type():
+    return float64
 
 def isscalar(obj):
     """