Clean packages/browser/src/Component/Itowns folder

[valentinMachado]

This conversion aim to clean the folder packages/browser/src/Component/Itowns. The code in that folder is used by our Widget and propose some features to itowns framework, in order to contribute our widget in itowns/widget we have to:

• add these features to itowns, if they are relevant/necessary
• refacto our widget using exclusively itowns, if they are not

In anycase this folder should be "empty", or at least be considered as a "buffer of code" the time to mature it and to add it to itowns.

As there are many code in that folder, I propose to open an issue for each folder/file in that folder, to discuss them one by one.

List conversation

This thread is to keep a global track of this work.

[valentinMachado]

In the end I did an issue