Add handlers for corner cases

[vkhodygo]

This is a cumulative issue for multiple components at the moment:

• Input data contains one or no components at all. Another special case is when the size is 2: any compensated summation should fail when there is only two numbers?;
• Division by zero or very small numbers that results in Inf or NaN;
• Overflow due to accumulation, that affects any sum. There is a solution (see GSL) that is to scale the data before summation, however, that comes at the cost of performance and - potentially - loss of precision. Sorting data should improve the situation, however, this is again slow and strongly depends on the data.