ThreadSafe

Add the Possibility to use 4D plugin functions in a premptive process. Add the tag "threadSafe":true in the manifest.
Most of the entrypoints are currently considered as not thread safe.
The entry points will be reviewed for 'thread safety' depending on your needs.

Add support collection/object

With the work from Rob Laveaux we have added the support for collections and objects in 4D.
Three new entry points have been added:

• EX_SET_OBJ_VALUE (701)=> Set properties in a object or collection
• EX_GET_OBJ_VALUE (702)=> Get properties of object or collection
• EX_COPY_VARIABLE (703)=> Copy a variable to another one