v0.0.2

Fixed

• Fix IndexBitfield::from_slice()

  from_slice() took a raw byte slice which did not give enough
  information about the length of the bitfield. Unused bytes would
  increase the size.

Changed

• Remove clones for is_superset and is_subset

  Remove the need to take ownership which usually resulted in a clone of
  the IndexBitfield for is_superset() and is_subset().

• Simplify IndexBitfield API

  Add simple getter/setter for IndexBitfield to get/set bool for index

• Add type parameter for IndexCountedSet

  In most cases, u8 should be enough but in case a larger number of
  peers are simultaneously connected.

Added

• Add time::Instant trait

  Add Instant trait for portability

• Add peer::MetricsHistory

  MetricsHistory can be used to store regular intervals of history.
  Useful to make decisions based on metric averages over a period of
  time.

• Add peer::Session for managing peer state

  Session maintains the various state changes for peers when a message
  is received or sent.

  Make peer::State and peer::SendState private to allow
  implementation details to change.

• Add max_index() to IndexBitfield and IndexCountedSet

• Add peer::Metrics and peer::State

  Metrics contain both the current interval's metrics and a running
  total of accumulated metrics.

  peer::State contains the local and remote state as well as deadlines
  for read and write.

• Add protocol::Metrics methods for specific types

  Allow individual message type metrics to be added to skip the match
  expression if the message type is already known

• Adds IndexBitfield::clear_with_max_index

  Enables reuse of the IndexBitfield by clearing and resizing to the new
  maximum piece index.

• Add generational index and vector types

  Generational vectors can be used to store data related to peers and
  torrents inside a session type

• Add protocol::Metrics, conn::Metrics, and torrent::Metrics

  Metrics can be used to keep track of what data has been exchanged. The
  metrics may be used to change behavior between peers.

• Add PartialEq to protocol types

  For ReservedBytes and ReceivedHandshakeState