Model generator should auto generate parameters for where and create

[felipecsl]

If the user provides the properties up front via command line, eg:

kales g model Foo name:String age:Int

then we can generate the code for where and create methods including the model params, eg:

fun where(name: String, age: Int) = 
    whereRecords<Foo>(mapOf("name" to name, "age" to age))

fun create(name: String, age: Int) = 
    createRecord<Foo>(mapOf("name" to name, "age" to age))