Improve Table Name Validation

[NickNack2020]

Fixes: #1951 Improve Table Name Validation

This PR aims to consolidate table name validation logic and rules into one space. We may need to apply the validation elsewhere since parts of the logic were enforced in various areas. It may not be perfect, but I hope this is better and quickly iterated.

• Table names cannot contain spaces
• Validate TableName is not a Cell Address
• A Table name must be unique across all defined names regardless of if it scoped to a workbook or sheet

Technically a table name should be unique across the workbook, but I did not tackle that, as it will impact many places we copy objects around, either copying tables or worksheets. - The workbooks that do exhibit this will not end up corrupt since there is still logic to normalize table names on save.