Processes new password
Use this when a new password is necessary
Order of operations are:
Reads --password-new-file
Reads PK_PASSWORD_NEW
Prompts and confirms password
If processNewPassword is used when an existing password is needed
for authentication, then the existing boolean should be set to true
This ensures that this call does not read PK_PASSWORD
This may return an empty string
Processes new password Use this when a new password is necessary Order of operations are:
PK_PASSWORDThis may return an empty string