[SUGGESTION] Appending files

[Gregory-Marshall]

Is your feature request related to a problem? Please describe.
I'm trying to log data to a file in a LiteStorage in batches and would like to be able to re-open the files to write additional data to them. Additionally between batches I need the ability to read in the data.

Describe the solution you'd like
A way to open an existing file with write privilege's and append data onto it.

Describe alternatives you've considered
I could write the data to a temp file on disk then upload when the recording is complete, however I would prefer always keeping the data in the database.