Develop integration with basic encoders

[david-ragazzi]

At moment nustudio is only working with HTM format (arrays of 0's and 1's). It would interesting it also work with basic encoders like scalar and others.

Note that other encoders are derivation of the basic encoders using hierarchy. This is the case of dateEncoder. We won't support these derivated encoders as they can be created using the own hierarchical structure provided by nustudio.

[david-ragazzi]

Solved with: 3264771