feat: improve constants

[septs]

expose some shorthand function, simplify checking logical

for example:

if card.ActiveProtocol()&scard.ProtocolT0 != 0 {
}
if readerState.EventState&scard.StatePresent != 0 {
}

v.s.

if card.ActiveProtocol().T0() {
}
if readerState.EventState.Present() {
}