Feature: Add models on update callbacks

[syphax-bouazzouni]

Requirement

This PR adds the possibility to add an onUpdate callback to a model attribute

For example

  attribute :name, enforce: [:string, :existence]
  attribute :first_name, onUpdate: :update_name
  attribute :last_name, onUpdate: :update_name

  def update_name(inst, attr)
    self.name = self.first_name + self.last_name
  end

Will ensure that each time we update firt_name or last_name we call the method update_name and make that name will always be firt_name + last_name

Changes

• add onUpdate callback tests (https://github.com/ontoportal-lirmm/goo/pull/31/commits/c83687e9a65c25313df6d74be96e83ace9d939c7)

• implement enforce_callback to run an attribute callback (https://github.com/ontoportal-lirmm/goo/pull/31/commits/e4979ffbb8e1d203d0db9368be1871ba172a5b69)

• move the attribute default callback to the save method (https://github.com/ontoportal-lirmm/goo/pull/31/commits/c7f7092a228b563d4637533131446015d0f36957)

• implement onUpdate DSL in the ressource settings (https://github.com/ontoportal-lirmm/goo/pull/31/commits/f81b15fd04c10e563d40bf0ab724fa9d810a18ce)

• call to the attributes onUpdate callback in the save method (https://github.com/ontoportal-lirmm/goo/pull/31/commits/714f085983a2695f4ea8caf7dea00b8883139cb3)