read MFA options from config file
Get MFA credentials from user
check mfa type while reading config file
write MFA options in key method 2 packet
read and verify MFA options
verified the MFA credentials via plugin
restrict the maximum number of mfa methods to 8
Removed MFA name parameter
refactored mfa_methods_list
auth by script
passing credentials to script via file
refactor mfa options
minor cleanup
s/MAX_MFA_METHODS/MFA_TYPE_N, send mfa type as int
Backward compatibility for MFA authentication
misc fixes

1. Fixed indentation.
2. Size of username array is USER_PASS_LEN.
3. Clear mfa struct even when mfa is not enabled on the server.
Merge pull request #1 from harsh1618/feature/mfa

Multifactor Authentication Support