SE: Fix FN S2583/S2589 Equals

[mary-georgiou-sonarsource]

When invoking Equals currently the engine is learning only object constraints.
It should also learn bool and number constraints.

Examples:

int i = 10;
if (object.Equals(i, i)) { }  // FN
  
bool a, b;
a = b = true;
if (object.Equals(a, b)) { }   // FN

• Learn bool constraint from equals when parameters are bool.
• Learn bool constraint from equals result when parameters are numerical values.