update clap to 3.x (roapi#126)

bump datafusion to support order unprojected column (roapi#123)

* bump datafusion to support order unprojected column

* bump version

bump datafusion to support order unprojected column (roapi#123)

* bump datafusion to support order unprojected column

* bump version

change default batch size to 8192 (roapi#112)

change default batch size to 8192 (roapi#112)

bump crate versions

fix windows release build

fix windows release build

optimize release build (roapi#88)

* switching to snmalloc yields 20% performance boost
* codegen-unit=1 yields 20% performance boost

optimize release build (roapi#88)

* switching to snmalloc yields 20% performance boost
* codegen-unit=1 yields 20% performance boost