Advanced permissions for strict mode

[Dynrothe]

Currently it's just user or moderator, user can move and add elements, moderator can do everything.

Add more specific individual permissions for all the features.

[Lethalchip]

Currently have roles for Owner, Moderator, Editor and None. Only Owner/Moderator are used.

The vision for strict mode is:

• None -> default perm, only view, can't run any reducers
• Editor -> can call element reducers (not raw data), enabling movement and updates to existing elements
• Moderator -> as it is in current state, can do editor stuff + upload new images and use rawData
• Owner -> can do anything

[Lethalchip]

Have reducers already made for setting permissions.

The to-dos are:

• add role check helper functions for editor
• update all reducer logic sanity checking to reflect intended role logic
• check permissions on client side before rendering certain components