Add Process constructors to TIA

[benjaminloerincz]

Add these constructors of namespace Process to TIA:

• Process.PluginDescribeResult.OutputParameter(String name, Process.PluginDescribeResult.ParameterType parameterType)
• Process.PluginDescribeResult.OutputParameter(String name, String description, Process.PluginDescribeResult.ParameterType parameterType)
• Process.PluginDescribeResult.InputParameter(String name, Process.PluginDescribeResult.ParameterType parameterType, Boolean required)
• Process.PluginDescribeResult()
• Process.PluginDescribeResult.InputParameter(String name, String description, Process.PluginDescribeResult.ParameterType parameterType, Boolean required)