[pymtl.integration] sort connections for caching
[pymtl.integration] sort connections for caching

cfelton/pymtl,Glyfina-Fernando/pymtl,jjffryan/pymtl,cornell-brg/pymtl,tj93/pymtl,jck/pymtl,cornell-brg/pymtl,12yujim/pymtl,tj93/pymtl,12yujim/pymtl,jck/pymtl,cfelton/pymtl,tj93/pymtl,jck/pymtl,12yujim/pymtl,jjffryan/pymtl,jjffryan/pymtl,Glyfina-Fernando/pymtl,cfelton/pymtl,Glyfina-Fernando/pymtl,cornell-brg/pymtl