Added processing of the typeStr attribute; it returns directly the token's datum type in string form.

[*] The fill function has been redesigned, now it takes three arguments of the subscription type, the subscription public key hash, and the network network identifier. The function now uses and processes dap_chain_addr_fill.

[*] Renamed the fill function to fillFromKey this is more consistent with the function that is called inside this wrapper.

[*] Fixed a bug related to getting a dateTime object from a timestamp. Added function to get datum version. Fixed the calling convention and the name of the function to get the size of the datum.

[+] Added attributes for reading data from dap chain_datum_token_t and dap chain _datum_token_emission_t.

[+] Added functions for checking whether a datum, a declaration token and an emission token, and also added functions for getting wrapper objects dap_chain_datum_token_t, dap_chain_datum_token_emission_t. The function of getting the string representation of the datum type has also been added.