1.Member functions defined in a class are inline by default (implicitly), and do not need to be added
2.inline is a keyword used for implementation, which has no effect when placed before the function declaration
For #2589
1. date(uint24_t)/datetime(int64_t)/largeint(int128_t) use frame of reference code as dict.
2. decimal(decimal12_t) also uses frame of reference code as dict.
3. float/double use bitshuffle code as dict.
