Proto commits in msemys/esjc

These 9 commits are when the Protocol Buffers files have changed:

Commit:dec4292
Author:Mindaugas Semys

maintenance: updated .proto

The documentation is generated from this commit.

Commit:1d23162
Author:Mindaugas Semys

[#33] added: retry count field to event of 'PersistentSubscriptionListener.onEvent'

Commit:79f3075
Author:Mindaugas Semys

[#24] added: 64bit event numbers support

Commit:d85f823
Author:Mindaugas Semys

[#22] added: 'current_version' to 'WriteEventsCompleted' message

Commit:ea6659a
Author:Mindaugas Semys
Committer:Mindaugas Semys

[#25] fix: use 'ResolvedEvent.event' as optional field (cherry picked from commit cb11581)

Commit:cb11581
Author:Mindaugas Semys

[#25] fix: use 'ResolvedEvent.event' as optional field

Commit:5ca172b
Author:Mindaugas Semys

refactor: changed groupid 'lt.msemys' -> 'com.github.msemys'

Commit:3b96224
Author:Mindaugas Semys

fix: marked 'ResolvedIndexedEvent.event' as optional

Commit:551fb57
Author:Mindaugas Semys

added: pom, readme and proto files