8177667: Langtools ant build has issues with Windows file separators
Summary: Replace complex, non-portable regex logic for generating --patch-module option with a script mapper
Reviewed-by: jjg, ksrini

8164887: update tests to remove use of old-style options
Reviewed-by: mchung

8157895: langtools launcher.sh-template script is broken
Summary: Add logic to quote Xpatch paths
Reviewed-by: jjg

8157326: Intellij langtools project should use shared run configurations
Summary: Turn langtools run configurations into shared configurations. Fix minor addExport issues.
Reviewed-by: jlahoda