add char16_t/char32_t types to BASIC_TYPE_STRINGS.
add char16_t/char32_t types to BASIC_TYPE_STRINGS.

NationalSecurityAgency/ghidra,NationalSecurityAgency/ghidra,NationalSecurityAgency/ghidra,NationalSecurityAgency/ghidra,NationalSecurityAgency/ghidra,NationalSecurityAgency/ghidra,NationalSecurityAgency/ghidra