Groovy, run scripts outside TXM Groovy script root directory

Be able to call Groovy scripts outside of the TXM Groovy script root directory
Currently the scripts root directory is TXMHOME/scripts/groovy/user

solution

Document : add a symlink to the external Groovy directory in the actual Groovy script root directory. e.g in the “projects” subdirectory : projects/myexternaldirectory

Solution

Add a new preference which adds additional paths to the GroovyScriptEngine when it is initialized (one time per TXM session)

(from redmine: issue id 3326, created on 2023/01/18 by Matthieu Decorde)