Create custom fields

<h3>The list of Ids for the request body</h3> <hr /> <table> <tr> <td> <b>Custom Field Types</b> </td> <td> <b>fieldTypeId</b> </td> <td> <b>Service Offerings</b> </td> <td> <b>serviceOfferingId</b> </td> <td> <b>Custom List Sort Types</b> </td> <td> <b>sortTypeId</b> </td> <td> <b>Free Form Data Types</b> </td> <td> <b>dataTypeId</b> </td> </tr> <tr> <td>Team Members</td> <td>1</td> <td>Contract Job</td> <td>1</td> <td>Alphabetically</td> <td>1</td> <td>Date</td> <td>1</td> </tr> <tr> <td>Custom List</td> <td>2</td> <td>Direct Hire Start</td> <td>2</td> <td>Manually</td> <td>2</td> <td>Number</td> <td>2</td> </tr> <tr> <td>Free Form</td> <td>3</td> <td>Team Profile</td> <td>6</td> <td></td> <td></td> <td>Textbox</td> <td>3</td> </tr> <tr> <td></td> <td></td> <td>Client Profile</td> <td>7</td> <td></td> <td></td> <td>Phone</td> <td>4</td> </tr> <tr> <td></td> <td></td> <td>Contractor Profile</td> <td>8</td> <td></td> <td></td> <td>Email</td> <td>5</td> </tr> </table>