Add OpenJDK Portable Support

[JohnTHaller]

We'll soon be packaging and releasing OpenJDK Portable now that it's available as 32-bit and 64-bit packages. Support will be added to the [Activate]Java=find section for this. The 32-bit variant will be installed to PortableApps\CommonFiles\OpenJDK. The JRE is then contained in a jre directory and the EXEs and DLLs within bin for a full relative path of PortableApps\CommonFiles\OpenJDK\jre\bin

[JohnTHaller]

On that note, we'll also be releasing the JRE package of OpenJDK as OpenJDKJRE. So that will reside at PortableApps\CommonFiles\OpenJDKJRE\bin

[Merith-TK]

https://portableapps.com/node/64102

Made a post about this a few months ago

[GordCaswell]

https://portableapps.com/node/64102

Made a post about this a few months ago

This doesn't relate to the Launcher, what you're referencing is in relation to the Platform.
What you're looking for might fit under the "Ability to manually add apps from other directories" or "Scan multiple paths for apps" upcoming features.
The upcoming features list can be found here: https://portableapps.com/node/28593