SliM execute fixture constructor based on parameters types #966

[george-toma]

The scope of this fix is that when a fixture is executed, the fixture class constructor should be selected by taking in consideration the constructor arguments types.

E.g. :
// when the user will execute a fixture called MyFixture
|Query:my fixture|10-Dec-1981 |
|myHeader |
|1429 |

// and when the fixture code is the following
public class MyFixture {

public MyFixture(Date date) {
//do flow for Date type
}

public MyFixture(Integer number) {
//do flow for Integer type
}

public MyFixture(String number) {
//do flow for String type
}

//then the Date constructor should be executed, and not String constructor as it was previously