add kjsm option for kotlin js command line compiler

compiler/testData/cli/js/createKjsm.args

@@ -0,0 +1,5 @@
+compiler/testData/integration/ant/js/simpleWithoutStdlibAndFolderAsAnotherLib/jslib-example/LibraryExample.kt
+-no-stdlib
+-kjsm
+-output
+$TEMP_DIR$/jslib-example.js

compiler/testData/cli/js/createKjsm.out

@@ -0,0 +1 @@
+OK

compiler/testData/cli/js/createMetadata.args

@@ -1,5 +1,6 @@
 compiler/testData/integration/ant/js/simpleWithoutStdlibAndFolderAsAnotherLib/jslib-example/LibraryExample.kt
 -no-stdlib
 -meta-info
+-kjsm
 -output
 $TEMP_DIR$/jslib-example.js

compiler/testData/cli/js/jsHelp.out

@@ -5,6 +5,7 @@ where possible options include:
   -library-files <path[,]>   Path to zipped library sources or kotlin files separated by commas
   -source-map                Generate source map
   -meta-info                 Generate metadata
+  -kjsm                      Generate kjsm-files (for creating libraries)
   -target <version>          Generate JS files for specific ECMA version (only ECMA 5 is supported)
   -main {call,noCall}        Whether a main function should be called; default 'call' (main function will be auto detected)
   -output-prefix <path>      Path to file which will be added to the beginning of output file