subs: needs to use make_matrix_or_array

[cbm755]

MWE, from test @sym/and:

syms x
e = (x == 3) & (x^2 == 9);
subs(e, x, [-3 0 3])
sympy(ans)
ans = MutableDenseMatrix([[false, false, true]])

Here e is a scalar but subs "broadcasts" to the size of [-3 0 3].

I guess the implementation needs to do a list-of-lists thing and then call make_matrix_or_array.

Blocks #1124.

[alexvong243f]

Fixed by https://github.com/cbm755/octsympy/pull/1227