Shape of 1d arrays

[JimHokanson]

Currently in the parsing options we specify row and column major. We may however wish to have different rules between nd-arrays and 1d arrays.

Similar to the collapsing rules, let's have a 1d array rule which would be unique to data type (numnbers, strings, logicals) with the following rules:

• 1 - row_vector
• 2 - column vector
• 3 - inherit (from column-major variable) (make default?)

[JimHokanson]

Just to clarify, the biggest issue with the current code is that column-major means that 1-d arrays default to columns instead of rows.