Add gui.TableView: a try at uniformity of control area tables
Add gui.TableView: a try at uniformity of control area tables

Somewhat replaces TableWidget purged in commit:
"gui.py: Improve code (lint)" (f2dfd65).

cheral/orange3,qPCR4vir/orange3,qPCR4vir/orange3,cheral/orange3,cheral/orange3,cheral/orange3,qPCR4vir/orange3,qPCR4vir/orange3,qPCR4vir/orange3,cheral/orange3,qPCR4vir/orange3,cheral/orange3