Backframe will not support commonjs

[ndaba1]

To avoid the complexity and make it easier to maintain the backframe packages, a decision was made to abandon commonjs in favor of esmodules. Initial versions of backframe included double compilation targets but this proved difficult to maintain. For a package like express, it is easy to stick with commonjs since the end users only import the package itself. But with backframe, it's a little bit more complicated since the end user not only imports backframe packages and utils, but the packages themselves also import the user's code. For this to work seamlessly, we went with esmodules