Add table look support for conditional table formatting

[paradoxloop]

Implement <w:tblLook> element to control which conditional formatting from table styles is applied.

Table styles can define special formatting for first/last rows/columns and horizontal/vertical banding. The new tableLook option allows users to toggle which of these formatting options are applied table by table.

Supported attributes:

• firstRow
• lastRow
• firstColumn
• lastColumn
• noHBand; and
• noVBand

Changes:

• Add TableLook component with ITableLookOptions type
• Integrate tableLook option into Table component; and
• Update documentation

Reference: http://officeopenxml.com/WPtblLook.php

[paradoxloop]

What is being controlled is the toggle on left of screenshot.