Submitted by: @mrotteveel

The BigDecimal float/double conversion is a bit mixed. FBBigDecimalField and FBDecFloatField use equivalents of `BigDecimal.valueOf(double)` when setting double values, but FBFloatField and FBDoubleField use new BigDecimal(double) when getting a float/double as BigDecimal.

For consistency it might be better to use BigDecimal.valueOf(double) for both, although this may lead to a perceived loss of 'precision' for FBFloatField and FBDoubleField given the differences between the two methods of obtaining a BigDecimal from a floating point type.