errno : add enumeration / descriptions

[Josverl]

Add descriptions as in : https://support.microbit.org/support/solutions/articles/19000126750-python-oserror-codes

However, the problem is that the different parts have different error numbers for the same symbol

#stm32 

ENOBUFS: int = 105
ENODEV: int = 19
ENOENT: int = 2
EISDIR: int = 21
EIO: int = 5
EINVAL: int = 22
EPERM: int = 1
ETIMEDOUT: int = 110
ENOMEM: int = 12
EOPNOTSUPP: int = 95
ENOTCONN: int = 107
errorcode: dict = {}
EAGAIN: int = 11
EALREADY: int = 114
EBADF: int = 9
EADDRINUSE: int = 98
EACCES: int = 13
EINPROGRESS: int = 115
EEXIST: int = 17
EHOSTUNREACH: int = 113
ECONNABORTED: int = 103
ECONNRESET: int = 104
ECONNREFUSED: int = 111

# Windows

ENOBUFS: Final[int] = 119
ENODEV: Final[int] = 19
ENOENT: Final[int] = 2
EISDIR: Final[int] = 21
EIO: Final[int] = 5
EINVAL: Final[int] = 22
EPERM: Final[int] = 1
ETIMEDOUT: Final[int] = 138
ENOMEM: Final[int] = 12
EOPNOTSUPP: Final[int] = 130
ENOTCONN: Final[int] = 126
errorcode: dict = {}
EAGAIN: Final[int] = 11
EALREADY: Final[int] = 103
EBADF: Final[int] = 9
EADDRINUSE: Final[int] = 100
EACCES: Final[int] = 13
EINPROGRESS: Final[int] = 112
EEXIST: Final[int] = 17
EHOSTUNREACH: Final[int] = 110
ECONNABORTED: Final[int] = 106
ECONNRESET: Final[int] = 108
ECONNREFUSED: Final[int] = 107