GET api/Files

<Response>                                   
  <Result>                                   <!--Array of 'Item'--> 
    <Item>                                   
      <Client>long</Client>                  <!--Contact number (unique ID) of the primary client--> 
      <File>long</File>                      <!--Unique ID of the file--> 
      <Matter>string</Matter>                <!--Matter description--> 
      <CreatedDate>datetime</CreatedDate>    <!--Date on which the file was opened--> 
      <MgrSupr>string</MgrSupr>              <!--Concatenation of the member codes for the file manager and supervisor--> 
      <Unbilled>decimal</Unbilled>           <!--Value of unbilled time/charges (WIP)--> 
      <Trust>decimal</Trust>                 <!--Trust balance--> 
      <Debtors>decimal</Debtors>             <!--Debtors balance--> 
      <Disbs>decimal</Disbs>                 <!--Value of unbilled disbursements--> 
      <IsClosed>bool</IsClosed>              <!--Whether the file is closed or ready for archival--> 
      <IsActive>bool</IsActive>              <!--Whether the file is active--> 
      <IsArchived>bool</IsArchived>          <!--Whether the file is archived--> 
      <FileNumber>string</FileNumber>        <!--Human-readable file number--> 
      <FileAs>string</FileAs>                <!--File-as name for the primary client--> 
    </Item>                                  
  </Result>                                  
  <Message>string</Message>                  <!--Error message--> 
</Response>