[1d] Command backup:create files

[balintbrews]

Implement command to backup a set of files similarly to backup:create db (#32).

backup:create files

• Upload archives to an Amazon S3 bucket.
• Clean up old files in the same Amazon S3 bucket based on the retention policy defined in .spark.yml.

• Use the task taskS3Upload previously implemented in [1d] Command backup:create db #32.
• Use the task taskS3Cleanup previously implemented in [1d] Command backup:create db #32.

Pull the necessary files and exclude options from .spark.yml to define which files the archive needs to include (and exclude).

Write a task named taskFilesArchive with the following options (implemented as class methods to set those options):

• files
• exclude
• destination

🗺 See the big picture and find more information on this board:
https://app.mural.co/t/relevantbits3735/m/relevantbits3735/1536919231246/07e00f760d984cb65ecd82b72e75dffaeb3017bd