Refactor metadata database bindings
Make Raptor plugin extensible
Move AbstractConfigurationAwareModule to Airlift
Move TestTypeSerde to SPI module
Remove file optimization and compression from Raptor
Remove unused block encodings
Move RLE block to testing package
Move VariableWidthBlockEncoding test to SPI
Remove Raptor dependency on presto-main
Move PagesSerde to block package
Move plugin class loader to top level