DONE : 
- code refactorisation
- change messages masses*L in order to add filter on masses Id (symbol only)
- same for links*L messages
- New messages linksEndT
- new messages to replace get messages : (should be almost compatible) : massesPos [Id], massesSpeeds [Id], massesForces [Id]
- new messages to replace get messages : linksPos [Id] gives the center of links, to be consistant with other linksPosL and linksPosT.
- new messages to replace get : linksEnd [Id] : should be compatible with get linksPos
- new messages eumMasses and enumLinks to get all masses or links that fit specific conditions
- new messages massesDistance Id Id : return message : massesDistance float_Id float_Id distance
- new message : forceXT [Id] table (same in other dimention), to add a force to many masses, value come from the table.
- new message : setActive, setInactive for links
- add fonctionality to setL : setL [Id] curent float : to addapt lenght of the link to curentlength
- add setLinksId and setMassesId to replace setLinkId and setMassId to be more consitant with other messages

TODO : 
setLCurrent pour remplacer setL Id adapt
messages that replace get messages : to send both synbol_Id and float_Id
rename enum en test
testMasses : ajout d'un Id de test : remplacer testMass en sortie par l'IdTest fournis
linkEndXT, linkEndYT, linkEndZT
make interactor for pmpd*
add more condition on testMass and testLink
	mass -> force
	link -> lengthX Y Z 
testMassT testLinkT, testMassL, testLinkL
statistics on links
closestNeighbor
linksEnd1T linksEnd2T (en X/Y/Z)
linksEndL
add creation parametter to fix maximum number of link and mass