v 1.1.0

1.1.0

• Added number_of_function_evaluations field in algorithms and serialised data. This fields
  calculate the number of times individual's objectives and constraints are evaluated during an
  evolution.
• Renamed struct to specify stopping condition values. For example,
  the StoppingConditionType::MaxGeneration(MaxGeneration(250))
  can be defined as StoppingConditionType::MaxGeneration(MaxGenerationValue(250)). This is done to avoid confusion
  between the enum StoppingConditionType value and the value of the stopping condition.
• Added the following new stopping conditions: MaxFunctionEvaluations, Any and All. The first one stops the
  evolution
  after a maximum number of functon evaluations. The second and third allows to combine multiple condition. For example,
  they allow to stop the algorithm when either a specific duration or evolution number are reached (using Any).