A contract that provides a simple RAM-based file system for Antelope
This contract is a generalization of what PermaStore does.
Whereas PermaStore forces Antelope names ("file names") to be mapped to contiguous data blocks, which makes it useful for associating individual data files with Antelope names, ramdisk allows any uint64_t node id to be assigned, in any order, thus allowing for sparse files.
A sparse file is, in essence, a disk. This allows for more sophisticated use cases, where an user is really registering a disk name, and managing each namespace as a disk which can store multiple files independently.