Remove format specifiers PRI* for tarantool

Remove format specifiers, such as PRI_OFFT. In printf() functions, use explicit casts to int, long, long long or macros from inttypes.h. On the same token remove u8, u16, u32, u64 and use uint8_t, uint16_t, uint32_t and use types from stdint.h instead. This is necessary for our Darwin port.