Interop summary page improvements

[mkhraisha]

1. Add a column to the Provider summary for overall

2. Use product offering instead of company names.

[TallTed]

It's fine to use company names with product names, so a company might be seen on multiple columns, but we must remember that one company may have test results for multiple products and/or multiple versions of a single product.

[OR13]

Suggest change to "Transmute - TypeScript / REST / JSON" for us at least.

[nissimsan]

@mkhraisha, would you be willing to assign yourself on this?

[rhofvendahl]

@mkhraisha Ping

[TallTed]

It would help folks trying to find the summary page, if a link to that page were added this issue. (I recommend editing the initial comment.)

[mkhraisha]

https://w3c-ccg.github.io/traceability-interop/reports/interoperability/ is where the summary can be found, this is not a high priority issue.

[mkhraisha]

As we are moving to the new fixtures test framework, we will no longer need this issue, as the entire table is being removed. #659 should also modify reporting to the new fixtures test.