Rename 'fileload' command to 'parse' to remove ambiguity

The lasloader package has a command line interface called lascli which has the general syntax:

• fileload: Dry run of the ingest command, instead of uploading data to the OSDU instance it creates json files for the wellbore and welllog.

The fileload commands parses a LAS file and generates the manifest for users to QC the data.

As a user, this command might imply the action is also loading the data to OSDU instance.

We want to change it to 'parse' for less ambiguity in the action of the command.