Update file format and file name for data saved using save_configuration() method in PTL

Developers
21

@hirenvadalia thank you for signoff
@agrawalravi90 i have updated EDD point 2: All config and hook files content will be encoded in base64 format before adding to json file. Hooks file content will be added to same json file. I have updated json file example too.

Regards,
Ravi

22

Looks good, thanks for making the changes.

23

@RKORavi : Changes looks good. I sign off.

24

Thank you @kjakkali @agrawalravi90 for sign off.