EventStream Parser

[QianSwirlds]

Add an EventStream Parser to parse new version EventStream files.
format:

Type	Description	Value
int	EVENT_STREAM_FILE_VERSION	2
byte	TYPE_PREV_HASH	1
byte[48]	Previous File Hash
byte	STREAM_EVENT_START_NO_TRANS_WITH_VERSION (0x5b) or STREAM_EVENT_START_WITH_VERSION (0x5a)
int	STREAM_EVENT_VERSION	2
long	event.creatorId
long	event.creatorSeq
long	event.otherId
long	event.otherSeq
long	event.selfParentGen
long	event.otherParentGen
NullableByteArray	event.selfParentHash	if read an Int -1, it means the array is null; else the int value is the length of the byte array to be read
NullableByteArray	event.otherParentHash	same as above
Transaction[]	event.transactions	only exists if we have read STREAM_EVENT_START_WITH_VERSION earlier
Instant	event.timeCreated
byte[]	event.signature
byte	commEventLast	0x46
byte[]	event.getHash()
Instant	event.consensusTimestamp
long	event.consensusOrder
byte	STREAM_EVENT_START_NO_TRANS_WITH_VERSION (0x5b) or STREAM_EVENT_START_WITH_VERSION (0x5a)
int	STREAM_EVENT_VERSION	2
next Event info...
byte	STREAM_EVENT_START_NO_TRANS_WITH_VERSION (0x5b) or STREAM_EVENT_START_WITH_VERSION (0x5a)
int	STREAM_EVENT_VERSION	2
next Event info...
...

[QianSwirlds]

Closed by bebf7f1