#101 add both 32 and 64 bit bundled jres

[Sebastian Bögl]

I'd like to add both 32 and 64 bit jres as bundled jre option.
This would allow to create a launch4j executable which will run under 64/32 bit and may select the correct bundled jre. Though this seems weird there are use cases for that specific arrangement.

Internally I would change the path and bundleJre64bit to path32 and path64. This will be backwards compatible. Furthermore, this should honor the runtimeBits in the bundledJreSearch function.