MAINT: Code reorg. Replaced assert with raising exceptions

1. mkl-service can now be built in-place.
   mkl-service/mkl-service renamed into mkl-service/mkl
   and setup.py now matches the name of folder, enabling
   working of build_ext --inplace

2. Moved tests/ and examples/ folders to the main level

3. Replaced use of assert with checks and raising of
   meaningful exceptions.

4. In Cython `cdef inline` is not useful unless types are
   specified, so did that, and moved all input checking
   to the cpdef functions.

5. Use Intel(R) MKL instead of Intel MKL

Author: oleksandr-pavlyk

LICENSE.txt

@@ -1,4 +1,4 @@
-Copyright (c) 2018, Intel Corporation
+Copyright (c) 2018-2019, Intel Corporation
 
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are met:

mkl-service/examples/example.py renamed to examples/example.py

@@ -1,4 +1,4 @@
-# Copyright (c) 2018, Intel Corporation
+# Copyright (c) 2018-2019, Intel Corporation
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are met:

mkl-service/__init__.py renamed to mkl/__init__.py

@@ -1,4 +1,4 @@
-# Copyright (c) 2018, Intel Corporation
+# Copyright (c) 2018-2019, Intel Corporation
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are met:

mkl-service/_mkl_service.pxd renamed to mkl/_mkl_service.pxd

@@ -1,4 +1,4 @@
-# Copyright (c) 2018, Intel Corporation
+# Copyright (c) 2018-2019, Intel Corporation
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are met: