- added converision to uint8_t int8_t int16_t uint16_t with in-box limits check;
- added limits check for int64_t and uint64_t;
- added limit check for conversion from negative to unsigned value (except uint64_t, because of intrnal implementation of strtoull method);
- result value will not be changed when cast is not correct;
- added tests for to_float and to_any.