Spike: Determine how much the `TableSchema` should follow `ColumnSchema`

[tamargrey]

We're planning on making some changes to how we handle a column's schema, and some of these changes might make sense on the TableSchema as well. We should consider each of these:

• change the use_standard_tags default value to False for the schema (still True for Accessor)?
• Validation?
• Allowing null logical type values?
  • This is pretty tied to how we do validation

Note: this is more about our philosophy regarding Schemas vs Accessors and isn't necessary for ColumnSchema implementation

[gsheni]

• Split use_standard_tags to be False into its own issue: #780