Reconsider the names of exported function

[hyrodium]

BasicBSpline.jl defines and exports functions dim, domain and degree. It seems these namings are general and may conflict with other packages. I guess it might be better to rename or avoid exporting these functions.

[hyrodium]

Maybe, it seems better to add the domain method to ApproxFunBase.domain.
https://juliaapproximation.github.io/ApproxFun.jl/latest/library/#ApproxFunBase.domain

[hyrodium]

Maybe, it seems better to add the domain method to ApproxFunBase.domain.

No, the package is not lightweight. It seems okay to keep the names of the functions with general names because one can call the functions explicitly.