* Reworked cable connections
Added enums for cable variants and sizes.
Rules for connections between a cable and another cable or grid member
are much more simple without any exceptions for certain combinations.
1/ Connections are rendered as the lowest type between cores.
2/ Each type uses are core for clear separation.
3/ The core will always be on the cable with the higher order.
* Renamed all dense smart cable related things to include smart
* Added dense covered cables
* Added abstract PartDenseCable to reduce redundant code
* Added dense covered recipes
* Ensures ItemPart ordering to be consitent.
Now takes the metadata into account to preserve the ordering for colored
items instead of just the part type name and depend on the insertion
order of a hashmap.
yueh