Add 21 missing stabilized io::ErrorKind variants to sgx_abi::Error (fixes #693)

[DejoeNithin]

Fixes #693

• Added only stabilized Rust io::ErrorKind

Rust ErrorKind	libc constant	Decimal	Hex
ArgumentListTooLong	E2BIG	7	0x07
OutOfMemory	ENOMEM	12	0x0C
ResourceBusy	EBUSY	16	0x10
CrossesDevices	EXDEV	18	0x12
NotADirectory	ENOTDIR	20	0x14
IsADirectory	EISDIR	21	0x15
ExecutableFileBusy	ETXTBSY	26	0x1A
FileTooLarge	EFBIG	27	0x1B
StorageFull	ENOSPC	28	0x1C
NotSeekable	ESPIPE	29	0x1D
ReadOnlyFilesystem	EROFS	30	0x1E
TooManyLinks	EMLINK	31	0x1F
Deadlock	EDEADLK	35	0x23
InvalidFilename	ENAMETOOLONG	36	0x24
Unsupported	ENOSYS	38	0x26
DirectoryNotEmpty	ENOTEMPTY	39	0x27
NetworkDown	ENETDOWN	100	0x64
NetworkUnreachable	ENETUNREACH	101	0x65
HostUnreachable	EHOSTUNREACH	113	0x71
StaleNetworkFileHandle	ESTALE	116	0x74
QuotaExceeded	EDQUOT	122	0x7A

References

• Rust stabilized errors: https://github.com/rust-lang/rust/blob/main/library/std/src/io/error.rs
• Rust -> libc mapping: https://github.com/rust-lang/rust/blob/main/library/std/src/sys/pal/unix/mod.rs
• Linux errno:
  https://github.com/torvalds/linux/blob/master/include/uapi/asm-generic/errno-base.h
  https://github.com/torvalds/linux/blob/master/include/uapi/asm-generic/errno.h