Define Storage Mechanism
Define Storage Mechanism

Storage mechanism are groups of storage cells. The storage mechanism
is responsible for managing resources shared between all its cells.

Issue: #1248
Change-Id: I57b3321c837776c3e85bd73afa3fd4d97d9b2f50

shaka-project/shaka-player,TheModMaker/shaka-player,TheModMaker/shaka-player,tvoli/shaka-player,tvoli/shaka-player,TheModMaker/shaka-player,tvoli/shaka-player,shaka-project/shaka-player,tvoli/shaka-player,shaka-project/shaka-player,shaka-project/shaka-player,TheModMaker/shaka-player