Add comments for Lz4FramedEncoder
Add comments for Lz4FramedDecoder
Add comments for Lz4Constants
Add validateChecksums flag for Lz4FramedDecoder
Renamed Lz4IntegrationTest to Lz4FramedIntegrationTest
Added Lz4FramedDecoderTest
Added Lz4FramedDecoderTest for exceptions
Removed Test class