Introduce a flexible way to configure data table column widths

[ndickerson]

Describe the solution you'd like
Right now the options for configuring data table column widths are:

1. Use the default - all columns have equal width that is shared as the total width expands
2. Set a fixed pixel width for some columns, leaving the rest to equally expand
3. Custom CSS solution at the consumer level

In order to accommodate readability at various screen resolutions, when a data table needs widths that grow at different rates (flex 1, flex 1.5, etc) then option 3 would be the only alternative.

A fourth option would be very helpful - instead of just allowing the column.width parameter in the column definition, allow a column.flexWidth (a.k.a: flex, flexibleWidth, flexBasis). The value provided could be passed through to the table as the percentage of total width that the column consumes. This could be a percentage for each column, or any of the other options that flex provides.

Will this feature require a breaking change?
Does your feature request require breaking changes to existing functionality of current components or services?

• Yes
• No
• Not sure

Alternative solutions
Option 3 above

Will this feature require a change to dependencies?
No

Additional context
This feature is being implemented in Novo, and will probably be re-implemented many times unless we can solve the root cause here in Novo Elements.