move datagrid classes to FlexJSJX so they can be cross-compiled
add other DataGrid classes from examples/DataGridXCompile for cross-compilation
add bar chart classes from examples/BarChartExample for cross-compilation
remove JS files that should now be generated via cross-compile
remove bar chart classes copied from example BarChart.  Will move ones from FlexJSUI instead
move chart classes from FlexJSUI
FlexJSJX and FlexJSUI compile cleanly
these were duplicates
cross-compile some AS classes to JS
fix clean target
add cross-compiled js files to bin kit