check in pow2 complex->complex testing

[tingxingdong]

resolves #___

Summary of proposed changes:

• to allow it compile add fftw3 double precision in library dependence
• slight change in fftw_transform.h & buffer.h
• refactor rocfft_transform.h

[bragadeesh]

make sure jenkins can build
add fftw3-3 for double precision
adding hip_runtime.h in rider, instead add in test headers
Need a separate review of rocfft_transform.h, lets setup one

[tingxingdong]

if without kernel launching, hip recommend include hip_runtime_api.h in host code which can be compiled with a gcc compiler.