Add synaptic links between connectors and treenodes

Add links between connectors and treenodes to designate pre- and postsynaptic connections in CATMAID

catmaid_link_connectors(treenode_id, connector_id,
  link_type = c("presynaptic", "postsynaptic"), verbose = TRUE,
  pid = 1, conn = NULL, ...)

Arguments

treenode_id	the treenode ID to/from which a link is to be made
connector_id	the connector ID to/from which a link is to be made
link_type	whether the link is presynaptic or postsynaptic
verbose	whether or not to report if a link is successfully made
pid	project id. Defaults to 1
conn	CATMAID connection object, see ?catmaid::catmaid_login for details
...	methods passed to catmaid::catmaid_fetch