Scope: NETLIST_ITEM, CONNECTION_TYPE, ELECTRICAL_PINTYPE,
NET_CONNECTION, NETLIST_ITEM, GRAPHIC_PINSHAPE
Note, the pin type enum had PT_ added to the front to prevent
shadowing of the INPUT symbol on msys2 (see discussion at
c17c9960d8)
Bus upgrades: core new connectivity code
Bus upgrades: eeschema integration and modifications
Bus upgrades: eeschema dialogs
Bus upgrades: netlist export
Bus upgrades: file format changes