Allow non-literal series objects in tables

Example:

sigma = 3.405 [angstrom]
h = sigma * 2**(1/2) / 2
x = map((x: h*x), (x: 1., 1., 0.))
y = map((x: h*x), (y: 1., 0., 1.))
z = map((x: h*x), (z: 0., 1., 1.))
symbols = (symbols: 'Ar', 'Ar', 'Ar')
atoms = (atoms: Table with columns = (symbols, x, y, z))
struct = Structure Ar3 from (
      (atoms: Table with columns = (symbols, x, y, z)),
      (pbc: [true, true, true]),
      (cell: [[2., 0., 0.], [0., 2., 0.], [0., 0., 2.]] [angstrom])
      )
print(atoms)

• The first problem is that in static typechecking it is assumed that the objects in columns_tuple are Series or references to Series. After adding these objects to columns it is asserted that all elements in columns are Series. Instead of this their type should be checked: assert issubclass(column.type_, typemap['Series']) and not assert isinstance_m(column, ['Series']).
• The second problem is the static check of attributes in specialized Tables for example in AMML Structure object. This check is partially impossible if these objects are no Series literals.