Files : API changes for 5.5 - Require API to get audit history of a file

Specification : 

Method used to get version history 
Endpoint :    /api/12/files/{fileid}/audit
Method : (GET)
Require Fields:

   - User detail (including User id, name, email)
   - Action
   - Audit date and time
   - IP address

Parameters:

Description:

- Please note that this API should give the response by verifying the current user's role in the site.
- Use existing auditDBO if possible
- User detail should be given from UserDBO format.
- Action would be actionname like viewed, downloaded etc and given in a string and actionalias would be FILE_VIEWED, FILE_DOWNLOADED etc and given in a string.
- Audit date and time will be given in UTC
- IP Address will be given in a string

The value of parameter limit will behave as per the following: 
- limit =25 is the default value
- if limit>0 then the number of items returned is equal to limit
- if limit=-1 then the response will return all records
- if limit <-1 then the system returns the default number of items i.e 25

The value of the offset parameter will behave as per the following:
- (Default) offset =0
- if offset > 0 then the records are returned from the offset value
- if offset < 0 then offset value of 0 is set

Response XML:

    <audits>
        <audit>
            <actionuser>
                <firstname>tom</firstname>
                <lastname>chick</lastname>
                 <email>tom.chick@highq.com</email>
                 <userid>101</userid>
            </actionuser>
            <actionname>viewed</actionname>
            <actionalias>FILE_VIEWED</actionalias>
            <date>28 Aug 2019 11:13</date>
           <ipaddress>192.168.152.44</ipaddress>
        </audit> 
          <audit>
            <actionuser>
                <firstname>tom</firstname>
                <lastname>chick</lastname>
                 <email>tom.chick@highq.com</email>
                 <userid>101</userid>
            </actionuser>
            <actionname>download</actionname>
            <actionalias>FILE_DOWNLOADED</actionalias>
            <date>28 Aug 2019 11:13</date>
           <ipaddress>192.168.152.44</ipaddress>
        </audit> 
  </audits>