conditional import scipy_fft (#195)

add an explicit mkl-service dependency to mkl_fft

resolves gh-115, gh-116, gh-119, gh-135

Merge pull request #141 from IntelPython/bump-to-1.3.13

Bump version 1.3.11 -> 1.3.13

Includes support in virtual environment out of the box and migrates f…

…rom setup.py to pyproject.toml

Merge pull request #124 from IntelPython/bump-version

Bump version

Merge pull request #103 from IntelPython/bump-version-1.3.10

Bump version to 1.3.10

Merge pull request #101 from IntelPython/bump-version-to-1.3.9

Bump version to 1.3.9

Bump up version to 1.3.8

Updated CHANGE-log

Updated mkl_fft.__version__ to 1.3.6