Constructor support

[BredStik]

Allows generation of constructors for records and classes when class/record or constructor is marked with [TsConstructorAttribute] AND constructor arguments match both the name and type of generated members of the TS file.

i.e.:

public class MyClass
{
    public string Name {get;set;}
    public int Age {get;set;}
    [TsConstructor]
    public MyClass(string name, int age){}
}

becomes:

export class MyClass {
    constructor(name: string, age: number){
        this.name: name;
        this.age: age;
    }
    name: string;
    age: number;
}

and

[TsConstructor]
public record MyRecord(string name, int age);

becomes

export class MyRecord{
    constructor(name: string, age: number){
        this.name: name;
        this.age: age;
    }
    name: string;
    age: number;
}

Also supports generation of empty constructor.