Prism has introduced a few extensions to the meta component version
format, which were not exported as JSON in the launcher. This caused the
`Customize` button on the version page to not write these new properties
to the custom component file.
Signed-off-by: Sefa Eyeoglu <contact@scrumplex.net>
Keep track of compatible Java versions from meta. Launch-step
VerifyJavaInstall will check if current instance's Java version is
compatible.
Also add override option both globally and per-instance in-case the user
doesn't care about the requirement.
