Removed redundant/unused conversions.
Documented all of the conversions, and renamed them to pack/unpackX, to match the API spec.
Updated/added some tests in AC35UnitConverterTest.
RaceStatus now contains a Bearing instead of a packed int bearing.
RaceStatus now contains wind speed in knots, instead of MMperSec packed.
This means that only RaceStatus decoder/encoder need to care about the bits-over-wire packed values.
issue #35#36
#story[1095]
Refactored RaceStatusDecoder to be more consistent with other decoders - it now has a getMessage() function.
Added BoatStatus encoder and decoder - the RaceStatus encoder and decoder uses this for BoatStatuses. The BoatStatus encoder doesn't implement the MessageEncoder interface as BoatStatus is not a proper message type (doesn't inherit from AC35Data).
Added remaining cases to EncoderFactory, but commented them out.
BoatStatus now uses BoatStatusEnum instead of a byte.
Added some comments to RaceStatus, and it uses enums instead of bytes.
MockOutput logs a warning if a RaceStatus cannot be encoded.
Added a BoatStatusDecoderTest.
Updated RaceStatusDecoder to use new encoders/decoders.
issue #35#36
#story[1095]
fjc40