Tickets fixed
- Ticket #260: BuildStensorFromMatrix class is wrongly implemented
- Ticket #259: Partial specialisation of ComputeBinaryResult is ill-formed for the product of a Stensor with an T2toST2 object

Tickets fixed

Ticket #260: `BuildStensorFromMatrix` class is wrongly implemented

For more details, see: https://sourceforge.net/p/tfel/tickets/260/

Ticket #259: Partial specialisation of `ComputeBinaryResult` is ill-formed for the product of a `Stensor` with an `T2toST2` object

For more details, see: https://sourceforge.net/p/tfel/tickets/259/