Update parser to accept date in MM-DD-YYYY format rather than RFC-3339

[vukani-dev]

Right now, the Unmarshal function for JSON and TOML parsing require a datetime in RFC-3339 format.
We should update this to accept a datetime in MM-DD-YYYY format.

That way a file can be read in with date = "10-05-2022" and be parsed correctly into a time.Time type under SharedCategory

[abjklk]

Hello @vukani-dev I can take this up, can you assign this issue to me ?

[vukani-dev]

Hello @vukani-dev I can take this up, can you assign this issue to me ?

Sure can!

[arshad-k7]

Please check my PR