Add support for long double type
Add support for long double type for max precission. Works on most platforms. QVariant ignores it unfortunately but see https://forum.qt.io/topic/76413/5-5-1-qvariant-support-for-long-double/2.
Add support for long double type for max precission. Works on most platforms. QVariant ignores it unfortunately but see https://forum.qt.io/topic/76413/5-5-1-qvariant-support-for-long-double/2.