Implements a dictionary and stores files inside the RAM.
Also, dumps all files and folders to persistent storage if a file name is given
Instructions to run the FS
make clean make ./ramdisk < mount point > < size in MB > [< file name >]
< mount point > and
< size in MB > are mandatory.
<file name> is the file where the files and folders in the RAMdisk are dumped into and read when remounted.