readFloatField() and readDoubleField() are implemented incorrectly

[rgiulietti]

https://github.com/NickstaDB/SerializationDumper/blob/69ea9ba932e31b78bc376d31650bfdcaef2e6b66/src/nb/deser/SerializationDumper.java#L1418

This is not correct, as it simply converts an int value to a float value. What is needed here, instead, is to invoke Float.intBitsToFloat() on the int.

Similarly in method readDoubleField().