Closes#10168
* Add versions 4.1.0.0 and 4.0.12.0
* Replace md5 checksums with sha256
* Logic to generate a helper script for versions earlier than 4 was
not running. This corrects the branch which controls whether this
script is generated.
* Constrain Java dependency to version 8 (GATK does not work with
Java 11)
* Avoid adding scripts that have dependencies not handled by Spack
such as gcloud and google-chrome. These scripts are good candidates
for later extensions.
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