MAINT: (re)add single axis dwt
MAINT: (re)add single axis dwt

rgommers/pywt,michelp/pywt,rgommers/pywt,PyWavelets/pywt,rgommers/pywt,eriol/pywt,rgommers/pywt,michelp/pywt,kwohlfahrt/pywt,grlee77/pywt,eriol/pywt,PyWavelets/pywt,kwohlfahrt/pywt,grlee77/pywt,michelp/pywt,kwohlfahrt/pywt,eriol/pywt