Support char as number

[tarwich]

This should return 0x61, but instead fails saying it needs a numeric type instead of a character type.

fmt::format("0x{0:02X}", 'a'); // Crashes

This, however, succeeds:

fmt::format("0x{0:02X}\n", (int)'a'); // Returns 0x61

[vitaut]

Since char is technically an integral type, I think you are right and this should be supported. Thanks for reporting!