Support text parameters in builds

[robfreundlich]

The ability to support parameters in builds is great. Can you please enhance it by supporting TextParameterDefinition parameters as in the following?

Thanks!

[MCMicS]

Sample Pipeline config:

   parameters {
       string(name: 'PERSON', defaultValue: 'Mr Jenkins', description: 'Who should I say hello to?')
       text(name: 'BIOGRAPHY', defaultValue: '', description: 'Enter some information about the person')
       booleanParam(name: 'TOGGLE', defaultValue: true, description: 'Toggle this value')
       choice(name: 'CHOICE', choices: ['One', 'Two', 'Three'], description: 'Pick something')
       password(name: 'PASSWORD', defaultValue: 'SECRET', description: 'Enter a password')
   }