Create proper filesystem management commands

[lmammino]

I would (really) love to have some management commands to read, write, list (etc) keys stored on a filesystem.

I propose the following commands:

Name	Arguments	Description
gaufrette:read	filesystem key	shows the content of key on filesystem
gaufrette:write	filesystem key content	writes content on filesystem usign the name key
gaufrette:exists	filesystem key	checks if key exists on filesystem
gaufrette:keys	filesystem [blob]	lists all keys in filesystem (optionally filtered by blob)
gaufrette:delete	filesystem key	deletes key in filesystem
gaufrette:rename	filesystem key1 key1	renames key1 to key2 in filesystem

What do you think about it? It should be quite easy to implement them as separate symfony commands and using the filesystem mapper service as way to retrieve configured filesystems.

[lmammino]

No opinions here? :bowtie: