Standardize W1D1-W1D4 tutorial dependency setup and imports#1021

cindyhfls wants to merge 17 commits into

NeuromatchAcademy:stagingNeuromatchAcademy/course-content-dl:stagingfrom

cindyhfls:week1-tutorials-updatecindyhfls/course-content-dl:week1-tutorials-updateCopy head branch name to clipboard