Improve build ordering dependencies

[ronanstokes-db]

Expected Behavior

When a column contains a SQL expression, if the SQL contains references to other columns that appear prior to the current column - adjust the build sequencing so that those columns are created first.

Current Behavior

You have to specify via baseColumn attribute in all cases

Improved behavior

If simple identifier parser detects valid SQL identifiers in the SQL expression and a) they are not inside a string, and b) they match an existing column name, use separate phases for generation of the column which references the other columns.

This will reduce the number of cases where it is necessary to explicitly reference the baseColumns