Feature: Support uppercase in names

[netayg]

Names with uppercase letters should be saved with " (double quotes) in TablenameColumns struct.
This will allow using uppercase names in the DB.
Currently unsupported as far as I know.

[stephenafamo]

I understand the need for this.

At the same time

• There are many other places where it is used and expected to be without quotes.
• Adding quotes (e.g with %q), is easier than removing them

Most of all, making this change would be backwards incompatible to we can only consider it at a major version. At best, maybe a flag could be used to control whether or not quotes should be added.