Use QListWidgetItem instead of QTableWidgetItem for ControlList

[bicobus]

QTableWidgetItem doesn't provide any method to help with an eventual search function, notably the QtWidgets.QListWidgetItem.setHidden method from QListWidgetItem.

The lack of hiding feature for the different items populating a list makes it hard to implement any kind of filtering system. If you know of a way to hide the table elements based on a string, please do tell me.