Replace static methods in Translog with instance methods

[sachinpkale]

Is your feature request related to a problem? Please describe.

• Static methods in Translog class allows accessing translog files without creating an instance of Translog.
• Even though this makes things convenience in recovery flow, it breaks the separation of concerns and with these static methods, maintaining Translog implementations becomes non-trivial.
• This feature request proposes changing all these static methods to instance methods.