New Project format

[Jesus89]

Update "ice" project format, version 1.0.0

package
 - name
 - version
 - description
 - author
 - image
design
 - board
 - state
    - pan
    - zoom
 - graph
    - blocks
    - wires
 - dependencies
version

Package section must be set in "Edit > Preferences > Project information".

Also, this project can be "Added as block" in other projects, instead of "Exporting" and "Importing" a block ".iceb". Therefore, ".iceb" format will be deprecated.

[Jesus89]

Done: 85efe2e